The speed of a homogenous solid sphere after rolling down

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

1. √ 10 gh
  7
2. √gh
3. √ 6 gh
  5
4. √ 4 gh
  3

Correct Option: A

P.E. = total K.E.

mgh =	7	mv²
	10

∴ v = √	10 gh	mv²
	7