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Physics - Rotation Question with Solution | TestHub

PhysicsRotation285Medium2 minQB

PhysicsMediummultiple choice

A solid sphere of mass 10 kg is placed on a rough horizontal surface with coefficient of friction $μ = 0.1$ . If a force of 28 N is applied at the top of the sphere then,

Options:(select one or more)

Answer:

A, D

Solution:

Pure rolling would need $f = \frac{3 F}{7} = 12 N > μ m g = 10 N$ , so the sphere slips

Kinetic friction = 10 N in the forward direction

$a_{c m} = \frac{28 + 10}{10} = 3.8 m / s^{2}$

Answer (A, D)

Stream:JEESubject:PhysicsTopic:RotationSubtopic:285

⏱ 2mℹ️ Source: QB

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