Statement I Work done by static friction could be negative. |
Statement II When static friction acts on a body that body must have zero KE. |
A) Both Statement I and Statement II are true and the Statement II is the correct explanation of the Statement I
B) Both Statement I and Statement II are true but the Statement II is not the correct explanation of the Statement I
C) Statement I is true but Statement II is false
D) Both Statement I and Statement II are false
Correct Answer: C
Solution :
Idea If static friction acts on a body, it might be at rest or in motion. Work done by static friction could be negative or positive or zero. Statement I is true but the Statement II is false. If static friction acts on a body, the relative motion of the body with respect to the surface below must be zero. Consider example belowYou need to login to perform this action.
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