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BodhiAI
Nov. 2, 2019

Work, Energy and Power for Rotating Body:

Work, Energy and Power for Rotating Body :

(1) Work :If the body is initially at rest and angular displacement is dθ due to torque then work done on the body.

Analogue to work in translatory motion

(2) Kinetic energy :

Rotational kinetic energy

Analogue to translatory kinetic energy

(3) Power:Rate of change of kinetic energy is defined as power

= Iωα = Iαω =τω