Center of MassHard
Question
A ball of mass m strikes the fixed inclined plane after falling through a height h. If it rebounds elastically, the impulse on the ball is :
Options
A.2 m cos θ
B.2 m cos θ
C.
D.2 m
Solution
Here e = 1
if ball rebound elastically
vLOI = uLOI
∴ Along line of impact momentum conservation
= mv − (−mu) = mv + mu = 2muAlog LO I uLOL = u cosθ =
J = 2m cosθ.
.Create a free account to view solution
View Solution FreeMore Center of Mass Questions
Internal forces in a system can change...A balloon having mass ′m′ is filled with gas and is held in hands of a boy. Then suddenly it get released an...A stationary body explodes into two fragments of masses m1 and m2. If momentum of one fragment is p, the minimum energy ...A man weighing 80 kg is standing at the centre of a flat boat and he is 20 m from the shore. He walks 8 m on the boat to...A man of mass m is stationary on a stationary flat car. The car can move without friction along horizontal rails. The ma...