Applied Mechanics and Graphic Statics
Two particles have been projected at angles 64° and 45° to the horizontal. If the velocity of projection of first is 10 m/sec, the velocity of projection of the other for equal horizontal ranges is

6.3 m/sec
7.3 m/sec
9.3 m/sec
8.3 m/sec

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Applied Mechanics and Graphic Statics
Newton's law of Collision of elastic bodies states that when two moving bodies collide each other, their velocity of separation

Is equal to the sum of their velocities of approach
Bears a constant ratio to their velocity of approach
Is inversely proportional to their velocity of approach
Is directly proportional to their velocity of approach

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