A 10-kg box, initially at rest, moves along a frictionless horizontal surface. A horizontal force to the right is applied to the box. The magnitude of the force changes as a function of time as shown.

Which of the following impulse calculations is correct?

I. The impulse for the period from 0 to 2 seconds is 4 Ns.
II. The impulse for the period from 2 to 5 seconds is 6 Ns.
III. The impulse for the period from 5 to 8 seconds is Ns.

A 10-kg box, initially at rest, moves along a frictionless horizontal surface. A horizontal force to the right is applied to the box. The magnitude of the force changes as a function of time as shown.

Rank the impulse (greatest to least) applied to the box by this force during each 2-second interval indicated below:
a. 0 to 2 s

b. 2 to 4 s

c. 4 to 6 s

d. 6 to 8 s

e. 8 to 10 s

A 6 kg sphere collides with a stationary 30 kg sphere on a frictionless and horizontal surface at t = 0 s as shown below.
A plot of the force exerted on the 30 kg sphere by the 6 kg sphere as a function of time is also shown.

What is the impulse applied to the 30 kg sphere?

For the collision shown ahttps://www.goconqr.com/assets/icons/image-plus-md.pngt the left, the impulse on the 6 kg sphere is:

For the collision shown, what is the speed of the 30 kg sphere immediately after the collision?