Question

A ball of mass 625 g traveling at 4.00 m/s to the right collides with another ball of equal mass that was initially at rest. The first ball is at rest after the collision.

(a) What is the velocity of the second ball after the collision?

(b) What is the velocity of the second ball if the mass of the two balls of equal mass changes?

Answer 1

Answer:

Hope this is helpful

SREEJITA SINGH

Answer 2

Explanation:

according to linear momentum conservation

0.625×4=0.625×v

v=velocity of second ball after collision

so

v=4m/s

(b)

velocity of second ball depends upon the ratio of two ball so if after changing the the mass again both have same mass then velocity remain same.