What is velocity of ball when it reaches maximal elevation

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Ball of mass "m" hangs on a string of length L` straight down from a cart of mass M standing on horizontal rails. The cart can move along the rails without friction. While the cart is at rest, the ball is given a horizontal velocity v0, v0 <sqrt(2gl) directed along the rails.

What is velocity of the ball when it reaches its maximal elevation?

Reference no: EM13535763

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