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

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

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Applied Mechanics and Graphic Statics
The angle of friction is:

The ratio of the friction and the normal reaction
The force of friction at which the body is just about to move
The force of friction when the body is in motion
The angle between the normal reaction and the resultant of normal reaction and limiting friction

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Applied Mechanics and Graphic Statics
The maximum displacement of a particle executing S.H.M. corresponds to

Minimum kinetic energy and minimum potential energy
Zero potential energy and maximum kinetic energy
Zero kinetic energy and maximum potential energy
Maximum kinetic energy and maximum potential energy

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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

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

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