94.16: A car of mass m, traveling at speed v, stops in time t when maiottx/ cok 2)9ximum braking force is applied. Assuming the braking force is independent of mass, what time wtx )tk i9/oco2ould 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_qr1)z:-abiaze dr +l* u 1xt9n______is also doubledrt u ae zn*x)-r1bz a9i:1+dql.

  96.06: Impulse, Fnet-+l rr a9t1blp oh4ph3 $\Delta$tis best related to:

  17.05: Which one of the following choices is most close.y1haz;f szo 3ly associated with the following observation about an isolated object: “The linear o ysh31z.; azfmomentum of the object is constant.”?

  17.21: The change in linear momentum ony /)x0,sjybe;r4u l vf an object is always in the same direction as ey,; x4) snv0yrlj/ buthe

  95.08: How long must a 1;uc77. 61,oyuzrwcocax2x2r wmd h e100 N net force act to produce a change in momentum of 20x76eu ac2c 1o.2 m;x1corh, wwuyzd7r0 kg.m/s?

  95.29: P and Q have the same momentum. Q can have more kinetic energy than P i7:c0s vq5yjfcl u j+x2f it:0jy 2vc 7qsxucf+5j l:

  98.26: A ball with a mass of 0.50 kg and a speed of 6.0 m/ql1leyhhh5doy;gr1t i l5cjak 0q,g( t .1z0/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 of the imp;5( gthzyh1g0. qart dqlyjl1,ch5ikl /o01eulse acting on the ball?

  01.08: A 50 kilogram gymnast falls freely from a height of 4 me *slgi3 dkk l1eh-( u6-c(gqnnters on to a trampoline. The tra6 3ksgngq- (( dkulh-ei1*lnc mpoline then bounces her back 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 moves at 10.0 m/s when it hanh:fec; 5h eey ;pt9.xs a collision in space. The mass’s speed was une.nfh xyeh ;; 5tp:9cechanged, but the direction of its velocity 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 a 0.125 kg-baseball is in contac zrg rulr82 elg209jv5sc/)zkt 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/v5l2c/29 0ug)elzsjkg 8r rrz s, what is the magnitude of the average force acting on the ball?

  15.43: An object of mass 4.0 g has atotal kinetic energykts 6ce wuu0*q/8b;j(pwv rs9 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 momentumu s0crv9k(*u/wt 8 sqb;wp je6?

  13.05: At an instant of time t, a point object of mass M moves with veloc0qs(bz :uwqq:w k2tj78* epvfg5 b)wnity V, has acceleration a, and is at position (x,y). In what direction must the linear momentum of q z)2sw(tw 57* e:0:bgjb pk8fwqnqvuthe object be directed at this instant?

  10.32: A rubber ball of mass 2.0 kg falling straight downward hits the gyc1 z0t 87kyscround with a speed of 0.90 m/s and th k 8cs0c7y1ytzen rebounds straight upward with a speed 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 mas qwcr)47v qxazl2) 1zos 2.0 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. Thc)4zwlvxa7 qqr)1o z2e 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 being pushed to the right across a horizontal su;9 qtsmj2cnh +rface while a constant frictional force of 8.0 N acts on the box. At s2+tch9;j smqn ome 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 horizontal sqqzfs/kmj2u5 9,hc g+ urface. When the box has 12.0 J of kinetic energy, a 12.0 N net force acts on it. Which one of the folloc 59q mj k2f/z,+uhgqswing choices best represents the magnitude of the linear momentum of the box at this instant?