Find the speed of the ball after the impact

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Reference no: EM131383234

Baseball bat A baseball bat has mass M and moment of inertia Mk² about any axis through its centre of mass G that is perpendicular to the axis of symmetry. The bat is at rest when a ball of mass m, moving with speed u, is normally incident along a straight line through the axis of symmetry at a distance b from G.

Show that, whether the impact is elastic or not, there is a point on the axis of symmetry of the bat that is instantaneously at rest after the impact and that the distance c of this point from G is given by bc = k². In the elastic case, find the speed of the ball after the impact.

[Gravity (and the batter!) should be ignored throughout this question.]

Reference no: EM131383234

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