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If a ship of mass 4 xx 10 ^( 7...

If a ship of mass ` 4 xx 10 ^( 7 ) ` kg initially at rest is pulled by a force of ` 5 xx 10 ^ ( 4 ) ` N through a distance of 4 m, then the speed of the ship will be (resistance due to water is negligible )

A

1.5 m/sec

B

60m/sec.

C

0.1m/sec.

D

5m/sec.

Text Solution

Verified by Experts

The correct Answer is:
C
`F=ma rArr a=(F)/(m)=(5x10^(4))/(3x10^(7))=(5)/(3) xx10^(-3) ms^(-2)`
Also `v^(2)-u^(2)=2as`
`rArr v^(2)-0^(2)=2xx(5)/(3)xx10^(-3)xx3=10^(-2) rArr v=0.1 ms^(-1)`
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