find expression for K.E of a body rolling over a surface?
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Derive an expression for kinetic energy, when a rigid body is rolling on a horizontal surface without slipping. Hence find the kinetic energy of a solid sphere.
total kinetic energy = translational kinetic energy + rotational kinetic energy.
total kinetic energy = 12MV2+12Iω2.
ω=VR.
total kinetic energy = 12MV2+12I(VR)2.
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