1) Show that Change in K.E. in Perfectly Inelastic Collision has a negative magnitude.
Asked by Ashish George | 8th Aug, 2010, 12:00: AM
In perfectly inelastic collions, there is permanent deformation in the colliding bodies, which do not recover.
Initial KE = Energy lost in deformation + Final KE.
Change in KE = Final KE - Initial KE = - Energy lost in deformation.
Since the energy lost is always positive, the above statement completely the required proof.
Answered by | 8th Aug, 2010, 09:59: PM
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