Physics-
General
Easy
Question
A particle of mass m moving horizontally with v0 strikes a smooth wedge of mass M, as shown in figure. After collision, the ball starts moving up the inclined face of the wedge and rises to a height h.
The final velocity of the wedge v2 is
- v0
- insufficient data
The correct answer is:
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A small particle of mass m is given an initial high velocity in the horizontal plane and winds its cord around the fixed vertical shaft of radius a. All motion occurs essentially in horizontal plane. If the angular velocity of the cord is 
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A small particle of mass m is given an initial high velocity in the horizontal plane and winds its cord around the fixed vertical shaft of radius a. All motion occurs essentially in horizontal plane. If the angular velocity of the cord is when the distance from the particle to the tangency point is r0 , then the angular velocity of the cord after it has turned through an angle is
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