Author Question: A 5-kg object is moving to the right at 4 m/s and collides with another object moving to the left at ... (Read 139 times)

skymedlock · **on:** Jul 28, 2018

A 5-kg object is moving to the right at 4 m/s and collides with another object moving to the left at 5 m/s. The objects collide and stick together. After the collision, the combined object:
a. is moving to the right.
b. is moving to the left.
c. is at rest.
d. has less kinetic energy than the system had before the collision.

Question 2

A thin uncharged conducting spherical shell has a charge q carefully placed at its center through a small hole in the shell. The charge q does not touch the shell. What is the charge on the shell?
a. 2q
c. q
b. 0
d. -q