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JEE Main 2022 (27 Jul, Shift 2) · Friction on an Incline

Friction on an Incline question from JEE Main 2022 (27 Jul, Shift 2)

Q16JEE Main 2022 · 27 JUL · SHIFT 2Easy

Friction on an Incline

A block of mass M slides down on a rough inclined plane with constant velocity. The angle made by the incline plane with horizontal is $\theta$ . The magnitude of the contact force will be:

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Answer: (a)

Constant velocity means net force on the block is zero.
The contact force (normal + friction together) must cancel the weight.
So its magnitude is $Mg$ : answer (a).

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