System of Particles and Rotational Motion - Result Question 84
91. The speed of a homogenous solid sphere after rolling down an inclined plane of vertical height $h$ from rest without sliding is
[1992]
(a) $\sqrt{\frac{10}{7} g h}$
(b) $\sqrt{g h}$
(c) $\sqrt{\frac{6}{5} g h}$
(d) $\sqrt{\frac{4}{3} g h}$
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Answer:
Correct Answer: 91. (a)
Solution:
(a) P.E. $=$ total K.E.
