Last Updated On [03-11-2023]
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
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Question ID - 101427 :- 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)
From impulse–momentum theorem,
(i)
(ii)
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According to Newton’s law of restitution,
Solve to get
Next Question :
A disc of radius 
is rolling purely on a flat horizontal surface, with a constant angular velocity. The angle between the velocity and acceleration vectors of point 
is given by 
.What is the value of 
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