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123. The speed of a homogeneous solid sphere after rolling down an inclined plane of vertical height h, from rest without sliding, is

(a)  √(10/7 gh)

(b)  √(gh)

(c)   √(6/5 gh)

(d) √(4/3 gh)

Ans. a

(7)

5/5 - (1 vote)

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