Question : A small sphere of mass 1 kg is moving a velocity (6i+j) m/s. It hits a fixed smooth wall and rebound with velocity (4i+j) m/s. The coefficient of restitution between the sphere and the wall is
a) 3/2
b) 2/3
c) 9/16
d) 4/9
Ans : b) 2/3
Similar Question :
Question : A small sphere of mass m = 1 kg is moving with a velocity of (4i-j) m/s it hits a fixed smooth wall and rebound with velocity (i+3j) m/s. The coefficient of Restitution between the sphere and the wall is n/16. Find the value of n.
Doubt by Jayant
Solution :
