UPSC Civil Service Exam Questions

Q1: A heavy elastic ball drops from the ceiling of a room, and after rebounding once from the floor, reaches a height equal to three-fourth of that of the ceiling. The coefficient of restitution will be

A

B

C

D

ANS:B -

The coeff of restitution = vel of separation/vel.of approach = √(1.5xgxh/2xgxh) = √(3/4).



img not found
img

For help Students Orientation
Mcqs Questions

One stop destination for examination, preparation, recruitment, and more. Specially designed online test to solve all your preparation worries. Go wherever you want to and practice whenever you want, using the online test platform.