a.Find the center of mass speed of the bar immediately after impulse. Express yo

Question

a.Find the center of mass speed of the bar immediately after impulse. Express your answer in terms of I initial,L,M and x. Caution! During the time that the bar is struck, the horizontal force exerted by the pivot is likely not going to be zero

b.Find the impulse ( I-P) exerted by the pivot onto the bar during the time that I initial(shown) is acting on the bar. Express you answer in terms of I initial,L and x

c.If you strick the bar at a point that is just the right distance from the pivot,then I-P will be zero. The location of this point is called the "sweet spot". Find the distance of the sweet spot from the pivot.Express your answer in terms of L.

Explanation / Answer

a)

L/2

b)

I=(I0X)*(2/L)

C)

X=2L/3

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