Question

An open carriage in a goods train is moving with a uniform velocity of 10 ms. If the rain
adds water with zero velocity at the rate of 5 kg s!, then the additional force applied by the
engine to maintain the same velocity of the train is
(a) 0.5 N (b) 2.0
n o 50N (d) 25 N​

Answer 1

Answer:

correct answer is 50 N

Explanation:

Given:

u=10m/s

dm/dt=5kg/s

F=ma=udm/dt

=10×5

F=50N

50N is required by the engine to maintain the same velocity of the train

Answer 2

Given:

u=10m/s

dm/dt=5kg/s

F=ma=udm/dt

=10×5

F=50N

50N is required by the engine to maintain the same velocity of the train.....

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