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A ball kept in a closed box moves in the box making collisions with the walls. The box is kept on a smooth surface. The velocity of the centre of

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asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

A ball kept in a closed box moves in the box making collisions with the walls. The box is kept on a smooth surface. The velocity of the centre of mass

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(a) of the box remains constant (b) of the box and the ball system remains constant
(c) of the ball remains constant (d) of the ball relative to the box remains constant

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