CALC A particle of mass m is at rest at t=0 . Its momentum for t>0 is given by px = 6t² kg m/s ,where t is in s. Find an expression for Fx(t) , the force exerted on the particle as a function of time.

What are the velocities of (b) a 75 kg skydiver falling with p = -4100j kg m/s

At what speed do a bicycle and its rider, with a combined mass of 100 kg, have the same momentum as a 1500 kg car traveling at 5.0 m/s?

FIGURE EX11.6 is an incomplete momentum bar chart for a collision that lasts 10 ms. What are the magnitude and direction of the average collision force exerted on the object?

A tennis player swings her 1000g racket with a speed of 10 m/s .She hits a 60g tennis ball that was approaching her at a speed of 20 m/s . The ball rebounds at 40 m/s.b. If the tennis ball and racket are in contact for 10 ms, what is the average force that the racket exerts on the ball? How does this compare to the gravitational force on the ball?

CALC A 500 g particle has velocity vx = −5.0 m/s at t=−2 s .Force Fx= (4−t²) N , where t is in s, is exerted on the particle between t=−2 s and t=2 s . This force increases from 0 N at t=−2 s to 4 N at t=0 s and then back to 0 N at t=2 s . What is the particle's velocity at t=2 s?

A250 grubber ball bounces off a wall. As it strikes the wall, it is moving in the negative x-direction at$11\text{m/s}$,and as it bounces off, it is moving in the positive x-direction at$10\text{m/s}$. What is the impulse on the ball from the wall?

What is the momentum of a600 kgcar traveling at$16\text{m/s}$ (about35 mph)?