the velocity with which marbles are striking the disc (the marbles strike the disc normally and rebound downward with the same speed)

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A disc of mass 10g is kept floating horizontally by throwing 10marbles/second against it from below. If the mass of each marble is 5g , the velocity with which marbles are striking the disc (the marbles strike the disc normally and rebound downward with the same speed)
22
Oct
A disc of mass 10g is kept floating horizontally by throwing 10marbles/second against it from below. If the mass of each marble is 5g , the velocity with which marbles are striking the disc (the marbles strike the disc normally and rebound downward with the same speed) A disc of mass 10g is kept floating [...]
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