A ball of mass 0.5kg moving at 10ms¯¹ collides with another ball of equal mass at rest. If the two balls move off together after the impact, calculate their common velocity.

By: |Published on: Mar 26|Categories: Physics JAMB| 0 comments

A. 0.2ms−1
B. 0.5ms−1
C. 5.0ms−1
D. 5.5ms−1

Correct Answer:

Option C = 5.0ms−1

Explanation

Using; m1u1 + m2u2 = (m1 + m2)v

m1 = 0.5kg, u1 = 10ms1, m2 = 0.5kg, u2 = 0

∴ (0.5kg x 10) + (0.5 x 0) = (0.5 + 0.5)v

v = 5ms−1

Users Also Read These:

SEE ALSO  A stone and a feather are dropped from the same height above the earth surface. Ignoring air resistance; which of the following is correct?

Copyright warnings! Do not copy.