First slide
Projection Under uniform Acceleration

A hose lying on the ground shoots a stream of water upward at an angle of 60° to the horizontal with the velocity of 16 ms-1. The height at which the water strikes the wall 8 m away is


ux=16cos60°=8 ms-1  Time taken to reach the wall =8/8=1 s  Now uy=16sin60°=83 ms-1 h=83×1-12×10×1=13.86-5=8.9 m

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