Question: A stone is projected upwards from the ground with velocity of 16 m/sec at an angle of 60 to the horizontal. With what velocity must

A stone is projected upwards from the ground with velocity of 16 m/sec at an angle of 60° to the horizontal. With what velocity must another stone be projected at an angle of 45° to the horizontal from the same point in order :
(1) to have the same horizontal range ?
(2) to attain the same maximum height ?

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