State whether the following assertion is true or false : When a person walks on a rough surface, the frictional force exerted by the surface on the person is opposite to the direction of his motion.

State whether the following assertion is true or false : When a person

1.	State whether the following assertion is true or false : When a person walks on a rough surface, the frictional force exerted by the surface on the person is opposite to the direction of his motion.
Answer» Solution :False, when a person walks on a rough SURFACE the MAN exerts a backward frictional force on the surface. It is the third law force exerted by the ROAD on the person that causes the MOTION.

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State whether the following assertion is true or false : When a person walks on a rough surface, the frictional force exerted by the surface on the person is opposite to the direction of his motion.

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