NDA 2026 Physics question

Physics Laws of Motion NDA 2026

A uniform rope hangs symmetrically over a smooth pulley. One end of the rope is given a slight mass, making that side slightly heavier. Which one of the following is correct ?

(A)As the rope starts moving, every point on the rope has the same acceleration.Correct
(B)As the rope starts moving, every point on the rope has the same speed, but not the same acceleration.
(C)As the rope starts moving, the tension remains the same throughout the rope.
(D)As the rope starts moving, the centre of mass remains stationary.

Answer: (A)

Solution

The rope is inextensible, so at any instant all its points move with the same speed and the same magnitude of acceleration along the rope.

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Question ID VK-033410