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Question Number 65414 by mr W last updated on 29/Jul/19

Commented by mr W last updated on 25/Feb/21

a ball is thrown from point A with  speed u and at an angle θ. it strikes  at a point on the inclined surface   and returns back to its start point.  if the coefficient of restitution is e,  find u in terms of θ. what is θ such  that u is minimum?

aballisthrownfrompointAwithspeeduandatanangleθ.itstrikesatapointontheinclinedsurfaceandreturnsbacktoitsstartpoint.ifthecoefficientofrestitutionise,finduintermsofθ.whatisθsuchthatuisminimum?

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