[" A loaded "20,000kg" coal "],[" wagon is moving on a level "],[" track at "6m/s" .Suddenly "],[5000kg" of coal is dropped "],[" out of the wagon.The final "],[" speed of the wagon is "]

A loaded 20,000kg coal wagon is moving on a level track at 6ms^-1 . Suddenly 5000kg of coal is dropped out of the wagon. The final speed of the wagon is

A loaded 20,000kg coal wagon is moving on a level track at 6ms^-1 . Suddenly 5000kg of coal is dropped out of the wagon. The final speed of the wagon is a) 6 m/s b) 8 m/s c) 4.8 m/s d) 4.5 m/s

A wagon of 200 kg is moving on a smooth track with velocity of 2 m//sec . A man of 80 kg also runs in the wagon with a velocity such that speed of the centre of mass of the system is zero. Find the velocity of man relative to the wagon (in m//s).

Four identical railway wagons each of m, are coupled together and rest on a smooth horizontal track. A fifth wagon of mass 2m and movingk at 5m/s collides and couple with the statioinary wagons. What is the speed of the wagons after the impact?

A mass of "2kg" moving at "6m/s" collides and sticks to a mass of "4kg" ,resting on a smooth surface.Find their speed after collision.

A wagon is moving along a straight railway track with a velocity of 3.2 m cdot s^(-1) . The wagon is being loaded with coal in moving condition at a rate of 540 kg. min^(-1) . How much force is to be applied to move the wagon at a constant velocity?Assume, the initial velocity of the coal at horizontal direction is zero.

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 :-

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 :-