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Statement I: Work done by normal contact...

Statement I: Work done by normal contact force can be non -zero
Statement II: Normal contact force is always perpendicular to displacement of object. (Here displacement is measured with respect to frame of reference attached to the two surface in contact. )

A

Statement I is true, statement II is true, statement II is a correct explanation for statement I.

B

Statement I is true , statement II is true, statement II is not a correct explanation for statement I.

C

Statement I is true, statement II is false.

D

Statement I is false, statement II is true.

Text Solution

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The correct Answer is:
A
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