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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 Mass - Physics

MCQ

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

Options

  • of the box remains constant

  • of the box plus the ball system remains constant

  • of the ball remains constant

  •  of the ball relative to the box remains constant.

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Solution

of the box plus the ball system remains constant

Consider the box and the ball a system. As no external force acts on this system, the velocity of the centre of mass of the system remains constant.

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APPEARS IN

HC Verma Class 11, 12 Concepts of Physics 1
Chapter 9 Centre of Mass, Linear Momentum, Collision
MCQ | Q 12 | Page 158
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