A person is moving on a rough horizontal surface towards east. Then the direction of friction force is towards:
A
West
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B
East
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C
Friction does not act
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D
Information insufficient
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Solution
The correct option is B East If man is moving in any direction then there must be some force acting on the man due to which he is able to move, that force is frictional force.
man applies frictional force on ground in backward direction and ground applies force in forward direction.