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A ball is dropped on to a fixed horizont...

A ball is dropped on to a fixed horizontal surface from a height .h.. The coefficient of restitution is .e.. What is the average velocity of the ball from the instant it is dropped till it goes to maximum height after first impact with ground?

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The correct Answer is:
`(1-e) sqrt ((gh)/(2))`
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AAKASH SERIES-COLLISIONS -NUMERICAL EXERCISE ( LEVEL 2)
  1. A ball falls vertically onto a floor, with momentum p, and then bounce...

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  2. Two bodies move towards each other and collide inelastically. The velo...

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  3. A ball is dropped on to a fixed horizontal surface from a height .h.. ...

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  4. A bag of mass M hangs by a long thread and a bullet (mass m) comes hor...

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  5. A body falls from height 20m. If co-efficient of restitution is(1)/(2)...

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  6. Two blocks A and B of masses m and 2m respectively are placed on a smo...

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  7. A small ball of mass m is placed on top of a "super ball" of mass M, a...

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  8. . Two spheres Pand Qmoving in opposite directions with velocities v(1)...

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  9. Two identical spheres are placed at two diametrically opposite points ...

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  10. Three particles A, B and C of mass m, 2m and 3m respectively lie on a ...

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  11. A is a fixed point at a height H above a perfectly inelastic smooth ho...

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  12. A particle of mass m having collided a stationary particle of mass M d...

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  13. Three identical discs, A, B and C rest on a smooth horizontal plane as...

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  14. Three balls of masses m, n, and m, are lying on a straight line. The f...

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  15. Ball B, of mass mg, is suspended from a string of length /attatched to...

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  16. A mass m moves with a velocity .y. and collides inelastically with ano...

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  17. Two blocks A and B of mass m and 2m respectively are connected by a sp...

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  18. A ball moving with a velocity v strikes a wall moving towards the ball...

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  19. A smooth washer impinges at a velocity v on a group of three smooth id...

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  20. A bomb explodes in air when it has a horizontal speed of v, It breaks ...

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