Applied Mechanics and Graphic Statics
Two objects moving with uniform speeds are 5 m apart after 1 second when they move towards each other and are 1 m apart when they move in the same direction.The speeds of the objects are:

3 m/sec and 3 m/sec
4 m/sec and 6 m/sec
2 m/sec and 2 m/sec
3 m/sec and 2 m/sec

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Applied Mechanics and Graphic Statics
Pick up the correct statement from the following. A rubber ball when strikes a wall rebounds but a lead ball of same mass and velocity when strikes the same wall, falls down

Rubber and lead balls undergo equal changes in momentum
Change in momentum suffered by lead ball is less that of rubber ball
None of these
Momentum of rubber ball is less than that of lead ball

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