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A ship of mass 3xx10^7kg initially at re...

A ship of mass `3xx10^7kg` initially at rest, is pulled by a force of `5xx10^5N` through a distance of 3m. Assuming that the resistance due to water is negligible, the speed of the ship is:

A

`1.5m//sec`

B

`60m//sec`

C

`0.1m//sec`

D

`5m//sec`

Text Solution

Verified by Experts

The correct Answer is:
C
Here, `m = 3xx10^(7) kg, F = 5 xx 10^(4) N, s = 3m`
`u = 0, v =?`
`a = (F)/(m) =(5 xx 10^(4))/(3 xx10^(7)) = 5/3xx10^-3m//s^(2)`
From `v^(2) - u^(2) = 2as`
`v^(2) - 0 =2xx (5)/(3) xx10^-3 xx3 =10^2` , `v = 0.1m//s` .
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Knowledge Check

  • A ship of mass 3 xx 10^(7) kg initially at rest, is pulled by a foce of 5 xx 10^(4) N through a dsitance of 3m. Assuming that the resistance due to water its negligble, the speed of the ship is:

    A
    1.5 m/s
    B
    60 m/s
    C
    0.1 m/s
    D
    5 m/s

  • A ship of mass 3 times 10^7 kg initially at rest is pulled by a force of 5 times 10^4 N through a distance of 3m. Assume that the resistance due to water is negligible, the speed of the ship is

    A
    `1.5 ms^-1`
    B
    `60 ms^-1`
    C
    `0.1 ms^-1`
    D
    `5 ms^-1`

  • A ship of mass 3 xx 10^7 kg initially at rest is pulled by a force of 5 xx 10^4 N through a distance of 3 m. Assuming that the resistance due to water is negligible, what will be the speed of the ship?

    A
    `0.1 ms^(-1)`
    B
    `1.5 ms^(-1)`
    C
    `5 ms^(-1)`
    D
    `0.2 ms^(-1)`