94.16: A car of mass m, travelin.)ufg5 ;y;+wkm(qb fp ik 7ncig at speed v, stops in time t when maximum braking force is applied. Assuming the braking force is independent of mass, what time i.w qfb);p gumc+ynk7 fk;i(5would be required to stop a car of mass 2m traveling at speed v?

  96.04: When the velocity of a moving object is doubled, its_______is bde (:g+pxvi5 u xwe7zc-; i 4zrpi6;balso doubledi pw;zzc(5x 4b-d;ex+iri7g u:b6evp .

  96.06: Impulse, Fne0(e(*z rgfah ot $\Delta$tis best related to:

  17.05: Which one of the following choices is most closely associated with th, 3-odkt-srfge following observation about an isolated object: “The linear momentum of the object is 3g,dt f-so k-rconstant.”?

  17.21: The change in linear momentum of sro4;7ejnlxx) f:w p(ylku;4 an object is always in the same direction as thf njswrpl7;xouy4)4 :;(kxl e e

  95.08: How long must a 100 N net force act to prb dy yr1(c8.xboduce a change in momentum of 200 kg..rb( bd yyxc18m/s?

  95.29: P and Q have the same momentum. Q can have more kinetic energ +zo98vej:qwgy than P if jwz+q8vog9:e it:

  98.26: A ball with a mass (y-1blnjgy k (qj*f(x2ds r s1of 0.50 kg and a speed of 6.0 m/s collides perpendicularly with a waqf2 jd 1n(xls(j1ybg rks(*y-ll and bounces off with a speed of 4.0 m/s in the opposite direction. What is the magnitude of the impulse acting on the ball?

  01.08: A 50 kilogram gymnast falls freely from a height of 4 meters on to a tram2)fn(luqm 7tu n7fn7 gkkw++2:b ekhqi-5bt cpoline. The trampoline then bounces her back upward with a speed equal to the speed at whife w7f +t qhlg(bnn 5+n kkqu22kum7b)ic7:-tch she first struck the trampoline. What is the average force the trampoline applies on the gymnast?

  17.27: A 2.0 kg mass moves at 10.0 m/s when it hq;qg g3 kxr *580ut myvr64mfyas a collision in space. The mass’s speed was unchanged, but the direction of its velo yy 5gmr 8xumk*q 4tgrq0v;63fcity was altered by $80^{\circ}$. If the collision lasted 0.25 s, what was the magnitude of the average force exerted on the mass?

  05.13: A bat striking ; +y dn,shc:wsa 0.125 kg-baseball is in contact with the ball for a time of 0.03 seconds. The ball travels in a straight line as it approaches and then leaves the bat. If the ball arrives at the bat with a velocity of 4.5 m/s and leaves with a velocity of-6.5 m/s,:hscswd+; ,n y what is the magnitude of the average force acting on the ball?

  15.43: An object of mass 4.0 g has at94tvx x(lt) hy:k6eji otal kinetic energy of 100.0 J and an x-component of linear momentum equal to 24.0 kg.m/s. The object is moving in the x-y plane. What is they-component of the object’s linear mo4ilxvhk)t6 x (t: y9jementum?

  13.05: At an instant of time t, a point object of mass M movsnz8mln4x:dx.j 91/dqqq wt 3es with velocity V, has acceleration4qd. :jxtdwn9 /msn1 8z3lqqx a, and is at position (x,y). In what direction must the linear momentum of the object be directed at this instant?

  10.32: A rubber ball of mass 2.0 4ok,n ygqz)x45z*sur kg falling straight downward hits the ground with a speed of 0.90 m/s and then rebounds straight upward with a sy54kn g)rxu zz s*,4qopeed of 0.60 m/s. The collision time of the ball with the ground is 0.25 s. Treat g = 10 N/kg.
What is the magnitude of the average acceleration (in units of $m/s^{2}$ ) of the ball while it is in contact with the ground?

  10.33: A rubber ball of mass 2.0 kg falling straight downwar v)kz-ilb/ pfxyk6a81ii7kz2d hits the ground with a speed of 0.90 m/s and then rebounds straight upward with a s78yzikx fzk/ b62piv-k1i al )peed of 0.60 m/s. The collision time of the ball with the ground is 0.25 s. Treat g = 10 N/kg.
What is the magnitude of the average force (in units of Newtons) exerted by the ground on the ball while they are in contact?

  14.12: A box of mass 5.0 kg is bedo/qj 9k 3qh/fca l0)eing pushed to the right across a horizontal surface while a constant frictional force of 8.0 N acts on the box. At some instant of time, t)efkc djqo9aq/l /03hhe box has a speed of 4.0 m/s and an acceleration of$3.0\; m/s^{2}$ . What is the magnitude of the net force acting on the box at this instant?

  15.12: A box of mass 12.0 kg is being pushed to ztc w l27bd1kw5m0p 4kthe right across a horizontal surface. When the box has 12.0 J of kinetic energy, a 12.0 N net force acts on it. Which one of the fo0mw zp2 b74d wckk1tl5llowing choices best represents the magnitude of the linear momentum of the box at this instant?