Download Aptitude Crack
img not found img not found

Applied Mechanics

Q1: Ball A of mass 250 g moving on a smooth horizontal table with a velocity of 10 m/s hits an identical stationary ball B on the table. If the impact is perfectly elastic, the velocity of the ball B just after impact would be

A zero

B 5 m/sec

C 10 m/sec

D none of these.

ANS:C - 10 m/sec

Law of conservation:

Initial of ball = final of ball.
m1u1 + m2u2 = m1v1 + m2v2.
250x10 + 250x0 = 250x0 + 250x v2,
v2 = 10 m/sc.



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.