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Chapter: 11th Physics : Work, Energy and Power

Loss of kinetic energy in perfect inelastic collision

In perfectly inelastic collision, the loss in kinetic energy during collision is transformed to another form of energy like sound, thermal, heat, light etc.

Loss of kinetic energy in perfect inelastic collision

In perfectly inelastic collision, the loss in kinetic energy during collision is transformed to another form of energy like sound, thermal, heat, light etc. Let KEi be the total kinetic energy before collision and KEf be the total kinetic energy after collision.

Total kinetic energy before collision,


Total kinetic energy after collision,


Then the loss of kinetic energy is Loss of KEQ = KE i  KEf


Substituting equation (4.63) in equation (4.66), and on simplifying (expand v by using the algebra (a+b) 2 = a2+b2+2ab, we get



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11th Physics : Work, Energy and Power : Loss of kinetic energy in perfect inelastic collision |


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