94.16: A car of mass m, traveling at speed v, stops in time t when may b cpwh4tj(1grz5t+/ ximum brakizt/ g(b hrtw5j1+cp 4yng force is applied. Assuming the braking force is 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 is doubled, its_______is als 26la cv58vnyqo doubled6a 5vq28ncl vy.

  96.06: Impulse, Fnet k do5jqj*l ;b:4mrv6h $\Delta$tis best related to:

  17.05: Which one of the following c iar70khur7+ shoices is most closely associated with the following observation about an isolated object: “The linear momentu+airhkru7 07 sm of the object is constant.”?

  17.21: The change in linear momentum (ne+vq+ v( uypam/g8rof an object is always in the same direction as +v8pr(/qyun+ega v m( the

  95.08: How long must a 100 N net force act to produce a chanj ,l:r)xr lc9tge in momentum of 200 r l9xt,r: )cljkg.m/s?

  95.29: P and Q have the same momentum. Q ca7) easbmujw8 1jl/q a/n have more kinetic energy than P if ilub am/8wja71q je)s/t:

  98.26: A ball with a mass of 0.50 kg and a speed of:u fg78gyd x9d 6.0 m/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 impulse acting on the ball 8udggy: x97df?

  01.08: A 50 kilogram gymnast falls freely from a height of 4 meters on to q: m qv3)i5+iljahi j4(ts c 8g:u4l-t3gosa wa trampoline. The trampoline then bsuj+ m(a4gt:icahi 8l) :345-isjvw3qtlogq ounces 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 wh gi; 9tkdmvhvuz.acs9.)w1 g 6en it has a collision in space. The mass’s speed was unchanged, but the direction ofka vh)9d w9cmzgi..v6;u1 s tg 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 contact with the ball for a ti t3hekx0z/b h8me of 0.03 seconds. The ball travels in a straight lihk h8e30z xt/bne 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 average force acting on the ball?

  15.43: An object of matg 9-)5su ulkhss 4.0 g has atotal kinetic energy of 100.0 J and an x-component of linear momentum t-sgu)9u h5lk 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 momentum?

  13.05: At an instant of time t, a 9bd aj bnle ot04g.-l. me.0xw(x +siepoint object of mass M moves with velocity V, has acceleration a, and is axx.jb.90ne a4ml0gwbel+et(di s . o- t 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 kg falling strai i+ ;u;cj/i +bq.p8qs :mfcfsvght 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 grou;fv/q+ mcc+us fb8pi .j iq;s:nd 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 /q1lr4 bykd;sow6f90m s 3mh tkg falling straight downward hits the ground with a speed of 0.90 m/s and then rebounds straight upward with a speedy04;/mbo9ql31ts6kd f s m rhw 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 owo,ycjict 0a1 6a(q7 being 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, the box has a speed of 4.0 m/s and an acc(6i qa,c071ya ctjowoeleration 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 acrox c.)ets8fa5xss 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 following choices best represents the magnitude of the linear momentum of the box 5)xx.ea 8fctsat this instant?