Question

The rotational kinetic energy of a body is E and its moment of inertia
is ????. The angular momentum is
(a) EI (b) 2 √E????
(c) √2E???? (d) E/????

Answer 1

hello

Rotational kinetic energy can be expressed as: Erotational=12Iω2 E rotational = 1 2 I ω 2 where ω is the angular velocity and I is the moment of inertia around the axis of rotation. The mechanical work applied during rotation is the torque times the rotation angle: W=τθ W = τ θ .