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Surface Irregularities

In which dire...

Question

In which direction does the friction act, when a block is moved down the inclined plane?

A

Normal and in upward direction along the inclined plane

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B

Normal to inclined plane

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C

Parallel to inclined plane

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D

Parallel and in upward direction along the inclined plane

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Solution

The correct option is D
Parallel and in upward direction along the inclined plane

When a block is moved down the inclined plane, the fictional force acts parallel and in upward direction along the inclined plane.

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