Question

81. A train of weight 1000 kN is pulled by an engine on a level track of a constant speed of 10 m/s. The
resistance due to friction is 1% of the weight of the train. The power of th engine is...
a) 125 kJ/s b) 105 kJ/s c) 100 kJ/s d) 115 kJ/s​

Answer 1

Answer:

An engine can pull a 500 metric ton load up an inclined plane rising 1m in 100m of horizontal distance with a speed of 10m per second. The frictional force offered by the plane is 2000 N. What is the power of the engine? Given g = 9.8 meters per second squared.

Explanation:

An engine can pull a 500 metric ton load up an inclined plane rising 1m in 100m of horizontal distance with a speed of 10m per second. The frictional force offered by the plane is 2000 N. What is the power of the engine? Given g = 9.8 meters per second squared.