A mass is in rest on an inclined plane of mass which is f…

Physics System of Particles Rotational Motion Telangana & AP CET Previous Year Question MCQ (Single Correct)

A mass is in rest on an inclined plane of mass which is further resting on a smooth horizontal plane. Now, if the mass starts moving under gravity, the position of centre of mass of system will

remain unchanged

change along the horizontal direction

move up in vertical direction

move down in the vertical direction and changes along the horizontal

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The correct answer is:

As there is zero net force on the system in horizontal direction because mass starts moving under gravity but there is a net force in vertical direction so centre of mass of the system changes in vertical direction

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