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A tennis ball launcher is placed on the...

A tennis ball launcher is placed on the floor at the front end of a train that has a uniform forward acceleration of 2m/s^(2) .The launcher projects a ball at an initial speed of 20m/s with respect to the train toward its rear.The ball achieves a maximum height of 10.0m .Ignore air resistance.Find how far (in m) from the front end of the train the ball lands inside the train.

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