Suppose a ball is thrown straight up. Make a u5pf7 n/;tk n tw6z.ko5zbag0dz,m3istatement about the velocity and the acceleragz/d;6inftza n. btwk57o0p5 ,k3 zmution when the ball reaches the highest point.

  A ball is thrown vertically upward y(kk( fqk0ir1 1t9v+rvzv u(ewith a speed v. An identical second ball is thrown upward with a speed 2v (twice as fast). What is the rat yv 0k1(r1+vikkuvte9q( fr(zio of the maximum height of the second ball to that of the first ball? (How many times higher does the second ball go than the first ball?)

  Suppose a ball is thrown straight up, reaches a maximum heig zfd4a z 6+zhxkk.r1br+ f5,nw(l u/p )amw+fcht, then falls to its initial height. Make a statement about the direp+6/ dk5r4w1zaar.,fkx++ flnmc)(ubw zhz fction of the velocity and acceleration as the ball is going up.

  The slope of a velocity versus time graph givykuk5epc .++z z+p)dpqupt3*es

  In Fig. below, what is the average velocity from:t2fo zkjvy0 ee/ -yk0 0 to 6.0 s?

  Human reaction time is usually greater than 0.10 s. If your friend holds a ru(xyvgg yx+bmz(.7 :pb/5vf vmler b zmxg.mv p5: vv+bxy/(7yb(g fetween your fingers and releases it without warning, how far can you expect the ruler to fall before you catch it?

  A ball is thrown straight up with a speed of 36.0 m/s. Howq. ac04crb,fkynbh; ) long does it take to return to its stc;b0b af) nq4ychr.k,arting point?

  Two objects are thrown from the top of a tc-wyd bb lo,p-p 4uk35all building. One is thrown up, and the other is thrown down, both with the same initial speed. What are their speeds when they hit 4bpckbo uw- y,5d3lp-the street?

  In Fig. below, what 597ykjlahnon(9ebr zai p 0djl7l);8is the velocity at t = 2.5 s?

  A foul ball is hit straight up into the air with a speed of 47.2 n+ htgn6+c6zuvedu, w:,fas9m/s. (use $g=10 \; m/s^2$, only fill in numerical value in the blank)
(a.) Calculate the time required for the ball to rise to its maximum height.  (数值)  $s$
(b.) Calculate the time for the ball to fall back to the height at which it was hit.  (数值)  $s$
(c.) Calculate the maximum height reached by the ball.  (数值)  $m$
(d.) Calculate the ball's speed 1 seconds later.  (数值)  $m/s$
(e.) Determine the time at which the ball pass a point 14 m above the point of contact between the bat and ball for the first time.  (数值)  $s$
(f.) Determine the time at which the ball pass a point 14.0 m above the point of contact a second time.  (数值)  $s$

  The area under a curve in an accelerka (pl5 ytig 6iy*g/1pation versus time graph gives

  In Fig. below, what is the acceleration agic+;kv;p4l g 6e925qrwt fv at 1.0 s?

  If the position versus time graph of an kikm/h* au2oojv0 857pbqca2object is a vertical line, the object isj2 pu0*7iqkoa 852/vchmkoba

  An object is thrown upward with a speed of 12 m/s on the sur6v- 0sz w:rgoqface of planet X where the acceleration due to gqv0or w-:z6 sgravity is $1.5 \; m/s^2$. How long does it take for the object to reach the maximum height?

  Suppose a ball is thrown straight up. What 1,lw+ i bzz)8 w2 8ciwho/gjciis its acceleration just before it r w)w 2 jciglh1b8i/8zowzic +,eaches its highest point?

  An object is moving withi64bwjowcxc1o+ /p s fzf;* /x constant non-zero velocity in the +x axis. The velocity jof+cbwwof/1xc*; s z4 6 x/ipversus time graph of this object is

  In Fig. below, what is the average accezwsm5,i wla.3lh2 fgpi-oijm0 le2; 9 leration from 0 to 8.0 s?

  An object is thrown upward with a spq6m ao+y4:t 9h* ccweqpl3 dt+eed of 15 m/s on the surface of planet X wherecdtay +h9 cq:6*tq3om+w4p le the acceleration due to gravity is $2.5 \; m/s^2$. How long does it take for the object to return to where it is thrown?

  When an object is released from rest and falls in the aqstpyt ehq5v4mo g,(;v6363d -k wytabsence of friction, which of the folloq e(d3yt653a okqspv ht6twg,v;- y4 mwing is true concerning its motion?

  Suppose a skydiver jumps fre)zns .o9f9ey 6fnic;om a high-flying plane. What is her acceleration when she she reaches terminals69f ;fone inzce )9.y velocity?

  The slope of a position versus time : um wo,16 bfiysdn45hgraph gives

  The area under a curve in a velocity versus time uddp :ats5v;x9 7 lilso- si(,graph gives

  If the velocity versus time graph of an object is a straight line making an ani0d b5 /e0 m nqk,aveq*9b bfu935xlxkgle of 30 degrees* b e9 nbbe3ld aix5vk9uxqfk50/,0mq with the time axis, the object is

  In Fig. below, what is the acceleration at;zq+w ;/p-il 9 x mhywp0u+dqh 3.0 s?

  An object is moving withfos2. khlx/ (7cta6ys constant non-zero velocity in the +x axis. The position verss(267tl ys.x/f acokhus time graph of this object is

  An object is moving with constant non-zero acceleration in the +x axis. Thojyu0g.;dym8 ) luv k)e position vm)j u;l08uv)y. ydo gkersus time graph of this object is

  A ball is thrown straight up, reaches a maximuu9 h8bcj tjqcnz1/18rm height, then falls to its initial height. Make a statement about the dir9ju htnbq1r/ 1cc8zj 8ection of the velocity and acceleration as the ball is coming down.

  A ball is thrown downward from the top of a b7 )g 82kg +n/k iav4(zv9ybhdkycte2auilding with an initial speed of 17 m/s. It strikes the ground after 3.3 s. How high is the bui i)v/ ey2yan7kacb z h94gk8t(+kgvd2lding?

  A ball is thrown straight up with a speed of 30 m.ava8wxia c/c1 ba, b6a zs4w,/s. (only fill in numerical value in the blanks)84 x,a6.wsv,z c/aia1bbcw aa
(a.) How long does it take the ball to reach the maximum height?    $s$
(b.) What is the maximum height reached by the ball?    $m$
(c.) What is its speed after 4.2 s?    $m/s$

  In Fig. below, what is the displacement from znly r5wh .97(s tjgk(0 to 8.0 s?

  A bullet shot straight up returns to its starting point in 10 s. m)s 14 gfrr8st What is the initial speed of the bfms1r)8gt s4r ullet?

  Suppose a ball is thr *x;rjey*z s*kown downward in the absence of air resistance. Make a statezsjry*ke *;*xment concerning its acceleration.

  When an object is released from rest and falls in the absence of friction, whichm .kr *zqu8yju,ojn j. 8.qfq+ of the following is true concernink q8j, *u..oqy.8rm ujzjfq+ng its motion?

  An object is moving with constant non-zero acceleration in the +x axis.taa vb 13yqban-x):4q The velocity versusv-na1t4qx3by :aa q)b time graph of this object is

  If the position versus t;mf:jprlowj u2m(/oc e i ;-ygt/p *m)ime graph of an object is a horizontal line, the object )m;/ f-ytcilpw * 2roej:;pmuo/ gjm(is

  In Fig. below, what is the average velocity from 0 to 7 .jqymyf ev)mt5ck,74.0 s?

  An object is thrown upward gl/g*)w*soi wp0xv,u with a speed of 14 m/s on the surface of planet X where the accev0w ls w)*xo,g/gu*p ileration due to gravity is $3.5 \; m/s^2$. What is the speed of the object after 8.0 s?

  If the velocity versus timctxeq6;.z w, k iwu5+se graph of an object is a horizontal line, the object is q.skczew,w;+ 5iu 6xt

  Ball A is dropped from the top of a building. One second laterawd;+8ue/gaka7i8ad n0 s( rv, ball B is dropped from the same building. As time progresses, the difference in th su7 a d8ek80a;r+iv(/d nwaageir speeds

  In Fig. below, what is the velocity at t = 4ykzgz*/0 ws ,0 k*vr)s,.b/pl lcgce l.0 s?

  In Fig. below, what i gn:nuv;nluvo j7 )8c1s the velocity at t = 5.5 s?

  In Fig. below, what is the velocity at t = 1;yoi1l2ncch n i,v/yqv;d-,m.0 s?

  An object is thrown upward with a speed of 12 m/s on the surface of plamcp .4ceo)h j6net X where tc ec o4p.)mhj6he acceleration due to gravity is $1.5 \; m/s^2$. What is the maximum height reached by the object?

  A brick is dropped from the top of a building. A seconr5dc id)t n21u,qt.z2rvj cl .d brick is thrown straight down from the same building. They are released at the same time. Neglect air resistance. Compare the accelerations of the two 1,.v)t.clnqi2rjtz ru 5d c 2dbricks.

  In Fig. below, what is the avu5voo1w-0ox ewdc s1mr7 w1r+dpd/f2b h5fe9erage acceleration from 0 to 5.0 s?

  A ball is thrown upward at a velocity of 19.6 m/s. tnvbhtwvoqm *r/3 11 tb:v48 r What is its velocity after 3.00 s18ho 1rtr 3 v4*wvvbb :nqm/tt?

  Ball A is dropped from the trg+3 6).ba flm-sep jkop of a building. One second later, ball B is dropped from the same building. As tijsgpfmla. er -)k3b 6+me progresses, the distance between them