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A body freely falling from a height h de...

A body freely falling from a height h describes `(7h)/16` in the last second of its fall. The height h is `(g = 10 ms^(-2))`

A

80 m

B

45 m

C

160 m

D

40 m

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The correct Answer is:
A
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AAKASH SERIES-MOTION IN A STRAIGHT LINE -EXERCISE -II
  1. Two bodies whose masses are in the ratio 2:1 are dropped simultaneousl...

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  2. A body falls for 5 s from rest. If the acceleration due to gravity of ...

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  3. A body freely falling from a height h describes (7h)/16 in the last se...

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  4. A body released from the top of a tower of height h takes T seconds to...

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  5. The ratio of times taken by freely falling body to cover first metre, ...

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  6. A body is droped from a height 122.5 m. If its stopped after 3 seconds...

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  7. A freely falling body travels of total distance in 5th second

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  8. If the distance travelled by a freely falling body in the last second ...

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  9. A ball dropped on to the floor from a height of 10 m rebounds to a hei...

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  10. A splash is heard 3.12s after a stone is dropped into a well 45 m deep...

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  11. A body is thrown up with a velocity 29.23 "ms"^(-1) distance travelled...

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  12. A body is thrown up with a velocity 40 "ms"^(-1), At same time another...

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  13. A stone is dropped into a well of 20 m deep. Another stone is thrown d...

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  14. A body is projected with a velocity 50 "ms"^(-1). Distance travelled i...

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  15. In above problem ratio of distance traveled in first second of upward ...

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  16. A body is projected vertically up with u. Its velocity at half its max...

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  17. A body projected up reaches a point A in its path at the end of 4th se...

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  18. A stone is projected vertically up from the ground with velocity 40 ms...

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  19. A body is projected vertically up with velocity 98 "ms"^(-1). After 2 ...

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  20. The distance travelled by a body during last second of its total fligh...

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