Question

a PARTICLE OF MASS M IS PROJECTED FROM THE GROUND WITH WITH INITIAL SPEED Uo AT AN ANGLE ALPHA WITH THE HORIZONTAL .AT THE HIGHEST POINT OF ITS TRAJECTORY IT MAKES A COMLETELY INELASTIC COLLISION WITH ANOTHER IDENTICAL PARTICLE WHICH WAS THROWN VERTICALLY UPWARD FROM THE GROUND WITH THE SAME SPEED INITAL SPEED Uo THE ANGLE THAT THE COMPOSITE SYSTEM MAKES WITH THE HORIZONTAL IMMEDIATELY AFTER THE COLLISION IS

Answer 1

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Answer 2

Answer:45 degrees

Explanation: