Question 11. A railway train weighing 1000 quintals is moving on a level line from rest. It attains a speed of 54 Km/ Hr in 5 mins. Find the mean pull exerted by the engine if the resistance to its motion is 5Kg/ Quintal. (Marks 5)
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Answer:
Explanation:
We know that Resistive force F = m g
= 5 x 1000
x 10
= 50 K N
We know that Power P = force x velocity
= 50 K N x 10
P = 500 KW
Vol 96
So power of engine is 500 KW
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