Home
Class 11
PHYSICS
A ship of mass 3 times 10^7 kg initially...

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 m/s

B

60 m/s

C

0.1 m/s

D

5 m/s

Text Solution

Verified by Experts

The correct Answer is:
C

`a = (5 xx 10^(4))/(3 xx 10^(7)) = 5/3 xx 10^(-3) m//s^(2)`
`v^(2) = u^(2) + 2as`
`rArr v^(2) = 0 + 2 xx 5/3 xx 10^(-3) xx 3`
`rArr v = 10^(-1) = 0.1 m//s`
Promotional Banner

Similar Questions

Explore conceptually related problems

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

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 ship of mass 3xx10^(2)kg initially at rest is pulled by a force of 5xx10^(4) N through a distance of 3m. Neglecting frcition, the speed of the ship at this moment is:

. The mass of a ship is 2 xx 10^7 kg. On applying a force of 25 xx 10^5 N, it is displaced through 25 m. The speed of ship is

A constant force acts on a body of mass 5 kg at rest for 10s. If the body moves through a distance of 250 m, what is the magnitude of the force?

Due to cold weather a 1 m water pipe of cross-sectional area 1 cm^2 is filled with ice at - 10^@C . Resistive heating is used to melt the ice. Current of 0.5 A is passed through 4 kOmega resistance. Assuming that all the heat produced is used for melting, what is the minimum time required ? (Given latent heat of fusion for water/ice = 3.33 xx 10^5 J kg^(-1) , specific heat of ice = 2 xx 10^3 J kg^(-1) and density of ice =10^3kg//m^3 )

Due to cold weather a 1 m water pipe of cross-sectional area 1 cm^2 is filled with ice at - 10^@C . Resistive heating is used to melt the ice. Current of 0.5 A is passed through 4 kOmega resistance. Assuming that all the heat produced is used for melting, what is the minimum time required ? (Given latent heat of fusion for water/ice = 3.33 xx 10^5 J kg^(-1) , specific heat of ice = 2 xx 10^3 J kg^(-1) and density of ice =10^3kg//m^3 )

A particle of mass 2kg is initially at rest. A force starts acting on it in one direction whose magnitude changes with time. The force time graph is shown in figure. Find the velocity of the particle at the end of 10s .