Q.

A ship of mass 3×107 kg initially at rest is pulled by a force of 5×104 N through a distance of 3 m. Assume that the resistance due to water is negligible, the speed of the ship is

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1.5 m/s

60 m/s

0.1 m/s

5 m/s

answer is 3.

(Detailed Solution Below)

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Detailed Solution

v2=2as=2Fm s [As u=0]⇒v2=25×1043×107×3=1100⇒v=0.1 m/s

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