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A ball is dropped from a building of hei...

A ball is dropped from a building of height 45 m. Simultaneously another ball is thrown up with a speed 40 m/s. The relative speed of the balls varies with time as

A

`t^(0)`

B

`t^(1)`

C

`t^(2)`

D

`(1)/(t)`

Text Solution

Verified by Experts

The correct Answer is:
A
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Knowledge Check

  • A ball is dropped from the top of a tower of height 78.4 m Another ball is thrown down with a certain velocity 2 sec later. If both the balls reach the ground simultaneously, the velocity of the second ball is

    A
    `29.4m//s`
    B
    `26.4m//s`
    C
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    D
    `41.6m//s`

  • A ball is dropped from the top of a tower of height 78.4 m Another ball is thrown down with a certain velocity 2 sec later. If both the balls reach the ground simultaneously, the velocity of the second ball is

    A
    `29.4m//s`
    B
    `26.4m//s`
    C
    `30m//s`
    D
    `41.6m//s`

  • A ball is dropped from the top of a tower of height 78.4 m Another ball is thrown down with a certain velocity 2 sec later. If both the balls reach the ground simultaneously, the velocity of the second ball is

    A
    29.4 m/s
    B
    26.4 m/s
    C
    30 m/s
    D
    41.6 m/s

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