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Question

# Ashwin pulls a load up an inclined plane. What forces must Ashwin overcome to pull it up? A. Contact force B. Gravitational force C. Frictional force

A

A and B only

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B

B and C only

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C

C and A only

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D

A, B and C

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Solution

## The correct option is B B and C only Gravitational force due to earth always exists downwards. The force opposing his relative motion along the incline is called frictional force. He uses muscular force to pull the load which is an example of contact force. Therefore, he needs to overcome gravitational and friction forces to pull the load up the incline.

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