Suppose that an object travels from one p:d( t0wm9x gw1svvlz 7oint in space to another. Make a comparison between the displacement and the distawd m7g vt1wlvsx:0z9(nce traveled.

  When is the average velocity n vk9+fk) zhr/of an object equal to the instantaneous velocity?

  A new car manufacturer advertises that their car can go-952j g skk+ vylkb/vpwxg --t "from zero to sixty in 8 s".kv2 pgy ks +jvk-9/5bgx-t-lw This is a description of

  An object moving in the +x axis experiences an + 32txp gh8hjjacceleration of $2.0 \; m/s^2$. This means the object is

  Suppose that a car traveling to the East (+x dir3soj dzz2 tqg36r97apection) begins to slow down as it approaches a traffic light. M3dgjr zo29sq3a6t7pz ake a statement concerning its acceleration.

  Suppose that a car traveling to the West (-x direction) begins 3bl d3q m*i3m 1*exljmto slow down as it approaches a traffic light. Make a statement concer3q3 eilmjxl m31b* *mdning its acceleration.

  Suppose that an object is moving with a constant velocity. Make a ruekxxus ys;)0 k5: a 4st2ji1statement concerning its accelerati) 2ssxuertuy:a; 5 i0kjs1k4x on.

  If the velocity of an object i rf ndccqdp8 h2 +5xbp695ex5bs zero, does it mean that the acceleration is zero? Support your answer fh+ dp 5 rbd8e56 bnc92pqxc5xwith an example.

  Can an object's velocity change direction when its accdm8wo9ak,a*js5qdrpb /e6b: kwb6h, eleration is constant? Support your answmw ,ok ,kaw*bj:ddqep8b/b5 rs 6ha96er with an example.

  Suppose that an object is moving with jxed-whk7rpwaw vw 18) /j1*j constant acceleration. Make a statement concerning its mor1xjja8/hj) *wwk-v7 we dp1wtion with respect to time.

  Can an object have i*i+ wrs6.a 1/kkc,j (hb8q: vqujyytancreasing speed while its acceleration is decreasing? Support your answer with an ew*skvr(ja,j8q6 1qyy +chtuk/b: ia. xample.

  Suppose a can, after an initial kick, movecsb/6o1u kzt)bi,u8 js up along a smooth hill of ice. Make a state86 tibuu)s1bz/ okj c,ment concerning its acceleration.

  Under what condition is average velocity equal twd 8j-*dp./s6gabs kduo0s r9 o the average of the object's initial and final velocity?*-wgb9 s d 8jp6ask/ so.rdd0u

  Objects A and B both start at rest. They both accelerate at the sambn/kccsqf8x8y vdzy l1/b.n 1du 32:p e rate. However, objectnckddl :by3/ p v81 ux2bfqyns/8z c.1 A accelerates for twice the time as object B. What is the final speed of object A compared to that of object B?

  Objects A and B both start from restlxsp-)(c/f)+j e de c,b4qvka. They both accelerate at the same rate. However, object A accelerates for twice the time as object B. What is the distance traveled by object A co/kfe e(cv d) s4p,) a-+bcxljqmpared to that of object B?

  An object moves 15.0 m north and then 11.0 m south. Find both tf6kshr, 36i oj, xbrk5he distance traveled and the magnitudi 3rhjoxf6,b,rks6 k 5e of the displacement vector.

  A boat can move at 30 km/h in still water. lz4l777,rf6i6sc nc( gofn fslid)t+ How long will it take to move 12 km upstreasgl+,6clfftficr4 s 7o n d7(7zi)6nlm in a river flowing 6.0 km/h?

  55 mi/h is how many m/s? (6gu:g(f6g; lm)lt*qnwrji2 / 4qtjlj1 mi = 1609 m)

  What must be your average speed in order to travel 350 z -/t aos84fq8nc4 8. yfnzsgzkm in 5.15 h?

  A runner ran the marxuhi+ qn9uu bggpop5-;f*h9 ) athon (approximately 42.0 km) in 2 hours and 57 min. What is the average speed of the runner95gfguxhqb-po9; )+p ih * uun in m/s?

  A car travels 90 km/h. How long doe;. rzwl( vm ;fzjsl;b.s it take for it to travel 400 km?

  A ly (light year) is the distance that li pms;ynw)3+ yfxm dp4v 2kf).xght travels in one year. The speed of li k4ypdsx)f +nf) v;m 2px.wm3yght is $3.00 \times 10^8 \; m/s$. How many miles are there in a light year? (1 mi = 1609 m, 1 yr = 365 d.)

  If you are driving 72 km/h along a straight road and you look to the7e7lmp92,ojzxan; b y side for 4.0 s, how far do you travel during zen7mblp 2 jyaxo ;9,7this inattentive period?

  If you run a complete loop around an outdoor track (42 ry+s75k9qsa; xxn hp00 m), in 100 s, your average velocity yk2r xnsh;x+q sap579 is

  A polar bear starts at);hfg 3 c4w*+ezc:k f8tmnac c the North Pole. It travels 1.0 km south, then 1.0 km east, then 1.0 km north, then 1.0 km west to return+ fce:a)ct3 ;c n8fk *czmhwg4 to its starting point. This trip takes 45 min. What was the bear's average speed?

  A polar bear starts at the North Pole. It travels 1.keg s; k16nt9bqrka /00 km south, then 1.0 km east, then 1.k1kt; nkqar6/begs09 0 km north, then 1.0 km west to return to its starting point. This trip takes 45 min. What was the bear's average velocity?

  You are driving home on a weekend from school at 55 mi/h for 110 miles. 8vhx47 vnt9/nwp6 r eyk3d(yg It then starts to snow and you slow to 35 mi/h. You arrive home after driving 4 hours and 15 miv(x/t yp ne9yngvd6348w kh7rnutes. How far is your hometown from school?

  A motorist travels 160 km at 8f /)oah4fpln 20 km/h and 160 km at 100 km/h. What is the average speed of the motorist for thisofphl a4/ )f2n trip?

  A motorist travels for 3.0 h at 80 km/h and 2.0 h at 100 km/h. What is her al oe* ,uaf*io8 8wc/ewverageae w/o*ui co*l8 ,wf8e speed for the trip?

  An airplane travels at 300 mi/h south for 2.00,n 9gjz+eiava5u*om j7+75 9 ecar egx h and then at 250 mi/h north for 7505eoxee ug g ,+7i57ajc+ znr*mja99va miles. What is the average speed for the trip?

  In a 400-m relay race the aniv,ud21s h. os2,iutgr +;wzcchorman (the person who runs the last 100 m) for team A can run 100 m in 9.8 s. His rival, the anchorman for team B, can cover 100 m in 10.1 s. What is tzisch 1wu o,2s2g+ ,rdti;vu.he largest lead the team B runner can have when the team A runner starts the final leg of the race, in order that the team A runner not lose the race?

  A car decelerates uniformly and comes to a stop after 11 s. The cav r*g,gqjn7n b2v,vzs4c gj9r-am3* gr's average velocity during deceleration was 36 km/h. What was the car's deceleration whign2q snm*bv-g za9g3jj7 c vr,,v4gr* le slowing down?

  An airplane increases its speed from 100 m/s to 160 m/s, at theq7w.j8 n4d jvoon: .*wawbwm4q3*s xd average rate of xm**7nswjq4ooawj b .:vq.dd4w3w 8n$15 \; m/s^2$. How much time does it take for the complete increase in speed?

  A car traveling 60 km/h accelerates at the ra 1 n0ivxs6q. j5qu4gohbtxg:;te of $2.0 \; m/s^2$. How much time is required for the car to reach a speed of 90 km/h?

  A cart starts from rest and accele,ol:p x6t w vh:j*an.brates at $4.0 \; m/s^2$ for 5.0 s, then maintain that velocity for 10 s, and then decelerates at the rate of $2.0 \; m/s^2$ for 4.0 s. What is the final speed of the car?

  A car travels at 15 m/s for 10hlz+tm v gep8mr k12,; s. It then speeds up with a constant acceleration 2,;t 18k grhlzvpem m+of $2.0 \; m/s^2$ for 15 s. At the end of this time, what is its velocity?

  A cart with an initial velocity of 6.2 m/s experiences a constanmb:xa5 e (8cf4dc mmt(t acceleration of 845(mdcfa(emb:c t mx$2.2 \; m/s^2$. What is the cart's displacement during the first 5.5 s of its motion?

  A bullet moving horizontally to theywbafg;qe7ib: 0- )mg right (+x direction) with a speed of 373 m/s strikes a sandbag and penetrates a distance of 27.38 cm. What is the average acceleration, ib0e:igym- gbf7 wqa );n $m/s^2$, of the bullet?

  A jet fighter plane is launcezse2p m 6o2k1hed from a catapult on an aircraft carrier. It reaches a speed of 42 m/s at the end of the catapult, and this 2o1ems2zep k6requires 2.0 s. Assuming the acceleration is constant, what is the length of the catapult?

  A car starting from rest rj.mz(pm/ zm* moves with constant acceleration of $2.0 \; m/s^2$ for 10 s, then travels with constant speed for another 10 s, and then finally slows to a stop with constant acceleration of
-$2.0 \; m/s^2$. How far does it travel?

  A car goes from 40 m/s to 80 m/s in a distance of 200 m. What is its aver l99 enbz6dmh(age acl6m9nehdz(b 9 celeration?

  An object starts from rest and unck7h0i:gz mx*dr51a;2 u gdfmdergoes uniform acceleration. During the first second it travels 9.2 m. How far will it tcxrz dufm5aih0g 2g1d: *;km7 ravel during the third second?

  An object is moving in a straight line with constant acceleration. Initiallysjp vj-jze79+f uh:hi llhfy3*r 35 6et c29vc it is traveling at 16 m/s. Three seconds later it is traveling at 10 m/s. How far does it movcl5f 3h- i2uj rhe7te6j*s9 c zj3p9+hlvfvy:e during this time?

  A car starts from rest and accelerates u59gjq qhj) 5:idg 9tqcniformly at $3.0 \; m/s^2$. A second car starts from rest 6.0 s later at the same point and accelerates uniformly at $5.0 \; m/s^2$. How long does it take the second car to overtake the first car?

  A car with good tires on a dry road can decelerate at aboj):gi7p6i2 ro jhatnf+)k ghohgr;. +ut $5.0 \; m/s^2$ when braking. Suppose a car is initially traveling at 55 mi/h.
(a.) How much time does it take the car to stop?    $s$ (only input numerical values)
(b.) What is the stopping distance?    $m$ ((only input numerical values)

  At the instant a traffic light turns green, a car that has been waiting at the 9,eofir36c( d* oi+lx8smssl intersection starts d +3*fo,rxils s (8im els9co6ahead with a constant acceleration of $2.00 \; m/s^2$. At that moment a truck traveling with a constant velocity of 15.0 m/s overtakes and passes the car.
(a.) Calculate the time necessary for the car to reach the truck.    $s$ (only fill in numerical values)
(b.) Calculate the distance beyond the traffic light that the car will pass the truck.    $m$ (only fill in numerical values)
(c.) Determine the speed of the car when it passes the truck.    $m/s$ (only fill in numerical values)

  Convert 35 mi/h to b 70t tzg,xx*xp0ck r)
(a) km/h,    km/h
(b) m/s ,    m/s
(c) ft/s.    ft/s

  A rolling ball moves from+cpzjrb:6x+ rlc7l :s $x_1$ = 3.4 cm to $x_2$ = -4.2 cm during the time from $t_1$ = 3.0 s to $t_2$ = 6.1 s What is its average velocity?    cm/s

  A particle at $t_1$ = -2.0 s is at $x_1$ = 3.4 cm and at $t_2$ = -4.5 s is at $x_2$ = 8.5 cm What is its average velocity? Can you calculate its average speed from these data?    cm/s

  You are driving home from school steadily at 95 km/h for 130 7k1i x9o6fsam)hc u t6bro: t*pclp29aqu a49 km. It then begins to rain and you slow to 65 km/h You arrive home after driving 3 hours and 20 miskuxf aci m6al2)oc7h:614u *9ptob9a9 tqp r nutes.
(a) How far is your hometown from school?    km
(b) What was your average speed?    km/h

  A person jogs eight complete laps around a quarter-mile track in a pcmtw ,:;4xcv total time of 1t4c:wxv,cpm ;2.5 min. Calculate
(a) the average speed    m/s
(b) the average velocity, in    m/s

  A horse canters away from its trainer in a straight line, moving 16:gw-tg i3r el16 m away in 14.0 s. It then turns abruptly and gallops halfway back in 4.8 s. Calcul:6ilg 3gtw-e rate
(a) its average speed    m/s
(b) its average velocity for the entire trip, using “away from the trainer” as the positive direction.    m/s

  An airplane travels 3100 km at a spewk1k(peei;2 p ed of 790 km/h , and then encounters a tailwind that boosts its speed to 990 km/h for the next 2800 km2 kk(ei epw;p1.
What was the total time for the trip?    h
What was the average speed of the plane for this trip? [Hint: Think carefully before using Eq. 2–11d.]    km/h

  Calculate the average speed and average velocity of a complete round-tri5 8hacog-2 he-179aeoza:qqk .kzz ufp in which the outgoing 250 km is covered at 95 km/h followed by a 1.0-hour lunch break, and the return 250 km is covered az: zz-fk 27aa 9ho k-cgq5hea. 1oeu8qt 55 km/h.    km/h

If one object has a greater speed than a second object, does the f12+l, owj pqagirst necessarily have a greater acc1ga, ql wpo2+jeleration? Explain, using examples.

Compare the acceleration of a motorcycle th ( jx xlc;xg/ya4mp2xs8 6h;pjat accelerates from 80km/h to 90km/h with the acceleration of a bicycle that accemx;s6(; xlc /gpay84jxj p2h xlerates from rest to 10km/h in the same time.

Two cars emerge sidemz(pwo on; wy9- yd4(l by side from a tunnel. Car A is traveling with a speed of 60km/h and has an acceleration of 40km/h/min 9( pylz ;oywom4-( dnw. Car B has a speed of 40 km/h and has an acceleration of 60km/h/min . Which car is passing the other as they come out of the tunnel? Explain your reasoning.

Can an object be increasing in speed as its acceleration decreases? If s x6r.p136rz9ba ee,epgvtob 4o, give an example.ppx. gz66a9e,v1 e b3ob r4tre If not, explain.

Can an object have zero velocity and nonzero accpgmau fi 1re+l lrnb;z829k) hjn+78celeration at the same time? Give exfeh7nlri1 m9g8 n28 ub+z la;)jpk cr+amples.

Can an object have zero acceleratiom: z bc 40+j8u qyhu28xc9znjcn and nonzero velocity at the same time? Give examplex+czy4uhmc 0 28 juj:q z98ncbs.