

MCQOPTIONS
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1. |
A body is allowed to slide on a frictional less track from rest under-gravity. The track ends in a circular loop of diameter D. What should be the minimum height of the body in terms of D, so that it may successfully complete the loop? |
A. | D |
B. | 5/4 D |
C. | 2D |
D. | 4/5 D |
Answer» C. 2D | |