Assertion :When a person walks on a rough surface, the frictional force exerted by surface on the person is opposite to the direction of his motion. Reason: It is the force exerted by the road on the person that causes the motion.
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
Assertion is correct but Reason is incorrect
Assertion is incorrect but Reason is correct
A
Assertion is incorrect but Reason is correct
B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
C
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
D
Assertion is correct but Reason is incorrect
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Solution
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When a person walks, he pushes the ground backwards and in turn ground applies a forward frictional force to help him move. Thus statement 1 is incorrect as this force acts in same direction as the motion. Reason is correct as explained above.
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Assertion :When a person walks on a rough surface, the frictional force exerted by surface on the person is opposite to the direction of his motion. Reason: It is the force exerted by the road on the person that causes the motion.
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