A plank with a uniform sphere placed on it, rests on a smooth hor… - Vidyadip

MCQ

$A$ plank with a uniform sphere placed on it, rests on a smooth horizontal plane. Plank is pulled to right by a constant force $F$. If the sphere does not slip over the plank.

✓
acceleration of centre of sphere is less than that of the plank
B
acceleration of centre of sphere is greater than the plank because friction acts rightward on the sphere
C
acceleration of the centre of sphere may be towards left.
D
acceleration of the centre of sphere relative to plank may be greater than that of the plank relative to floor.

✓

Answer

Correct option: A.

acceleration of centre of sphere is less than that of the plank

a

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