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22-12-2017
Physics

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A ball is thrown horizontally from a height of 17.3 m and hits the ground with a speed that is 5.00 times its initial speed. what is the speed in the vertical direction just before the ball hits the ground?

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28-12-2017

firstly, if you throw a ball horizontally, it will not affect the initial vertical speed (in vert. direction, initial speed/u =0)
therefore, you may consider the vertical direction as free fall under gravity.

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