94.16: A car of mass5-lzo/o lx4 v9ayxbr m81-mfe m, traveling at speed v, stops in time t when maximum braking force is applied. Assuming the braking force isv- y9m /o1mx-a8z45xolr be fl independent of mass, what time would be required to stop a car of mass 2m traveling at speed v?

  96.04: When the velocity of a moving object k: :fjjd ew,bmccu5)1is doubled, its_______is also doubleduc,jefcj1k : :bwm5d).

  96.06: Impulse, Fnettn78qv ublep78 yxj27 $\Delta$tis best related to:

  17.05: Which one of the following choices is most cl1em +ubhh); ,v* ddclnosely associated with the following observation about an is u,n ;+1 mbvlehcdh)d*olated object: “The linear momentum of the object is constant.”?

  17.21: The change in linear m .ti84bfhd) swomentum of an object is always in the same directionhfibwt4 ). ds8 as the

  95.08: How long must a 100 N net force act to produce a change in momc-cmu dpc 3/s3entum of 200 kg d3uc-c3/ mspc.m/s?

  95.29: P and Q have the same momentum. Q can have more kinetic energ vsqx6ytl t5esk0+) zi(s,k y7y than P if is +yt0 sq5ve,67(ztykxk) s lit:

  98.26: A ball with a mass of 0.50 kg and a speed of 6.0 m0y2-1afdwf 7;7bnppxe wwe ez+nsc +8 /s collides perpendicularly with a wall and bounces off with a speed of 4.0 m/s in the opposite direction. What is the magnitude wn c8wsb p+7ef2 +wxadf0y-n1epz 7e;of the impulse acting on the ball?

  01.08: A 50 kilogram gymnast falls zw+vry3t-ep)mt24oj freely from a height of 4 meters on to a trampoline. The trampoline then bounces her r4)jtpye2v zt+-m3 owback upward with a speed equal to the speed at which she first struck the trampoline. What is the average force the trampoline applies on the gymnast?

  17.27: A 2.0 kg mass motai9x) zq:g5zltu:i+ ves at 10.0 m/s when it has a collision in space. The mass’s speed was unchanged, but the direction of its velocity was alter)u z+9a:zqli txt 5i:ged 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 a 0.125 kg-baseball is in contact with the 1z-5gszk;noa-01 pvug9 x3cy fony5vball 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, what is the magnitude of the averak- yzc os0v151f-zg3a ynunox p;5g9 vge force acting on the ball?

  15.43: An object of massmh5c 1s2il *-w is,aer 4.0 g has atotal 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 plair5 ss*mcwh-2 a,1l iene. What is they-component of the object’s linear momentum?

  13.05: At an instant of time t, a point object of mass M moves with veo l i-o5n*t,rplocity V, has acceleration a, and is at position (x,y). In what direction must the linear momentum of the object be it* lo5n-,rop directed at this instant?

  10.32: A rubber ball of mass 2.0 kg f2 uh boz5.w**avowh4walling straight downward hits the ground with a speed of 0.90 m/s and then rebounds straight upward with a speed of 0.60 m/s. The collision time of the ball with the ground is5bw .o4h*v uw a*zoh2w 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 gtjtfo 1*(m 0)h,u)j1fmdc f n2.0 kg falling straight downward hits the ground with a speed of 0.90 m/s and then rebounds straight upward with a speed of 0.60 m/s. The collision t ) mffh1(j tf0*t)ucj d1onm,gime 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 being pu +b;,iqai5rg/o axvj1shed to the right across a horizontal surface while a constant frictional force of 8.0 N acts on the;5joirva,/qx1 + bag i box. At some instant of time, the 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 the right across a horizontau+n5kys( wnyhd852h il surface. When the box has 12.0 J of kinetic energy, a 12.0 N net force acts on it. Which one of the following choices best represents the magnitude of the lin n5y+h2sdwi k(nyh8 5uear momentum of the box at this instant?