Applied Mechanics and Graphic Statics
A bullet weighing 200 g is fired horizontally with a velocity of 25 m/sec from a gun carried on a carriage which together with the gun weighs 100 kg. The velocity of recoil of the gun, will be

0.05 m/sec
1.5 m/see
0.01 m/sec
1.00 m/sec

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Applied Mechanics and Graphic Statics
The masses of two balls are in the ratio of 2 : 1 and their respective velocities are in the ratio of 1 : 2 but in opposite direction before impact. If the coefficient of restitution is ½, the velocities of separation of the balls will be equal to

Half the original velocity in the same direction
Half the original velocity in the opposite direction
Original velocity in the same direction
Original velocity in the opposite direction

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