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A bullet fired vertically up from the gr...

A bullet fired vertically up from the ground reaches a point in its path after 3s and 13 s, both times being taken from the instant of firing the bullet. The velocity of projection of the bullet is `(g=10ms^(-2))`

A

`80ms^(-1)`

B

`40ms^(-1)`

C

`160ms^(-1)`

D

`20ms^(-1)`

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • A bullet fired vertically up from the ground reaches a height 40 m in its path from the ground and it takes further time 2 seconds to reach the same point during descent. The total time of flight is (g=10ms^(-2))

    A
    4 s
    B
    3 s
    C
    6 s
    D
    8 s

  • A bullet fired vertically up from the ground reaches a height 40 m in its path from the ground and it takes further time 2 seconds to reach the same point during descent. The total time of flight is (g=10ms^(-2))

    A
    4 s
    B
    3 s
    C
    6 s
    D
    8 s

  • A bullet fired vertically up from the ground reaches a height 40 m in its path from the ground and it takes further time 2 seconds to reach the same point during descent. The total time of flight is (g=10ms^(-2))

    A
    4s
    B
    3s
    C
    6s
    D
    8s

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