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A body is throw with the velocity u = ...

A body is throw with the velocity ` u = 12.0 ms^(-)` at an angle of `alpha = 45^(@)` to the horizon. If touch to the ground at the distance s from the point where it was thrown. From what height h should stone be thrown in a horizontal direction with the same inital velocity u so that it falls at the same spot ?

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AAKASH SERIES-MOTION IN A PLANE-NUMERICAL EXERCISE (LEVEL -1)
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  15. A stone is throw horizontally with the velocity u 15m/s from a tower...

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  16. A body is throw with the velocity u = 12.0 ms^(-) at an angle of al...

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  17. A ball is thrown with the velocity u at an angle of alpha to the hor...

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  18. A ball is throw from the top of a tower of 61 m high with a velocit...

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  19. A ball rolls of the top of a stariway with a constant horizontal vel...

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