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Answer with reason: In an elastic collision of two billiard balls, is the total kinetic energy conserved during the short time ofcollision of the balls (i.e., when they are in contact )?

Answer» <html><body><p></p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> :The collision produces a <a href="https://interviewquestions.tuteehub.com/tag/slight-2273584" style="font-weight:bold;" target="_blank" title="Click to know more about SLIGHT">SLIGHT</a> deformation of both the balls. A partof the KE is used for that deformation , so the total KE is not <a href="https://interviewquestions.tuteehub.com/tag/conserved-2539138" style="font-weight:bold;" target="_blank" title="Click to know more about CONSERVED">CONSERVED</a> during the short time of collision. However,due to the elastic stress <a href="https://interviewquestions.tuteehub.com/tag/developed-431631" style="font-weight:bold;" target="_blank" title="Click to know more about DEVELOPED">DEVELOPED</a> in the perfectly elastic balls, the kinetic <a href="https://interviewquestions.tuteehub.com/tag/energy-15288" style="font-weight:bold;" target="_blank" title="Click to know more about ENERGY">ENERGY</a> is regained after the collision.</body></html>


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