Home
Class 12
PHYSICS
An open water tight railway wagon of mas...

An open water tight railway wagon of mass `5xx10^(3)` kg coasts at initial velocity of `1.2 m//s` without friction on a railway track. Rain falls vertically downwards into the wagon. What change then occurred in the kinetic energy of the wagon, when it has collected `10^(3)` kg of water

A

900 J

B

300 J

C

600 J

D

1200 J

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Similar Questions

Explore conceptually related problems

An open water tight railway wagon of mass 5 xx 10(3) kg coats at an initial velocity 1.2 m//s without friction on a railway track. Rain drops fall vertically downwards into the wagon. The velocity of the wagon after it has collected 10^(3) kg of water will be :-

A stone of 3kg is thrown vertically upward with an initial speed of 20m/s. If g=10 m//s^(2) , then find the kinetic energy and potential energy after 1s.

80 railway wagons all of same mass 5xx10^(3) kg are pulled by an engine with a force of 4xx10^(5) N. The tension in the coupling between 30 th and st 31st wagon from the engine is :-

A solid sphere of mass 10 kg and radius 0.5 m is rolling on a road without sliding with an regular velocity of 12 rad/s. What is the percentage of rotational kinetic energy in the total kinetic energy of the wheel?

An open carriage in a goods train is moving with a uniform velocity of 10 m/s. If the rain adds water with zero velocity at the rate of 5 kg/s, then the additional force required by the engine to maintain the same velocity of the train is

An open rail road car of mass M is moving with initial velocity v_(0) along a straight horizontla and friction less track.It suddenly starts raining at time t=0. The rain drops fall vertically with velocity with velocity u and add a mass of m kg //sec of water . The velocity of car after t second is