What is the speed of a homogeneous solid sphere after rolling down an inclined plane of vertical height h from rest, without sliding?
A) √ᵍ ʰ⁄₁₀
B) √ᵍ ʰ⁄₇
C) √ᵍ ʰ⁄₅
D) √ᵍ ʰ⁄₃