Download Aptitude Crack
img not found img not found

UPSC Civil Service Exam Questions - Engineering

Q1:

A ball of mass 1 kg moving with a velocity 2 m/s collides directly with a m2 stationary ball of mass 2 kg. If the first ball comes to rest after the impact, what is the velocity of the second ball after impact ?

A 1.0 m/s

B zero

C 2 m/s

D 0.5 m/s

ANS:A - 1.0 m/s

Here, M1V1 = M2V2.