Question
a ball falls on an inclined plane of inclination @ from a height h above the point of impact and makes a perfectly elastic collisiom.where will it hit the plane again?Joshi sir comment
velocity of impact = √2gh
so components of velocity after rebound = √2ghcosθ perpendicular to the plane and √2ghsinθ parallel to the plane for the collision is perfectly elestic
now with perpendicular component take net displacement 0 and calculate time
then find displacement along the plane by using s = ut + 1/2at2
here remember that you should divide gravity in comnents too
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on its surface...i know it is very helpful answer....
APAR BANSAL 12 year ago
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