A ball of mass 1 kg moving with a velocity of 5 m/s collides elastically with rough ground at an angle with the vertical as shown in Fig. What can be the minimum coefficient of friction if ball rebounds vertically after collision? (given

A ball of mass 1 kg moving with a velocity of 5 m/s collides elastically with rough ground at an angle with the vertical as shown in Fig. What can be the minimum coefficient of friction if ball rebounds vertically after collision? (given

1 Answer

127 votes

**(1)**

From impulse–momentum theorem,

(i)

(ii)

According to Newton’s law of restitution,

Solve to get

127 votes

127