An engine is pulling a train of mass `m` on a level track at a uniform speed `u`. The resistive froce offered per unit mass is `f`.

An engine is hauling a train of mass m on a level track at a constant speed v . The resistance due to friction is f . What power is the engine producing? What extra power must the engine develop to maintain the speed up a gradient 1 in l. What is the new total power developed by the engine develop to maintain the speed up a gradient 1 in l. What is the new total power developed by the engine ?

An engine pulls a train 1 km over a level track. Calculate the work done by the train given that the frictional resistance is 5xx10^5 N.

A train weighing 100 metric ton is running on a level track with a uniform speed of 72km h^(-1) . If the frictional resistance amounts to 0.5kg per metric ton, find the power of the engine

A railway engine of mass 50 tons is pulling a wagon of mass 40 tons with a force of 4500N . The resistance force acting is 1N per ton The tension in the coupling between the engine and the wagon is .

A railway engine of mass 50 tons is pulling a wagon of mass 40 tons with a force of 4500N. The resistance force acting is 1N per ton. The tension in the coupling between the engine and the wagon is