71.A solid cylinder of length 1 m and diameter of
cross section y 100 cms is first placed with its axis
vertical its then slowly inclined till its axis is
horizontal. The loss in its potential energy if the
mass of the cylinder is 10 kg is
(a) 59 J
(b) 10g
(c) Zero
(d) gu
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Answer:
(c) Zero
Explanation:
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