A train having `60` wawgons each weight `25` tonner moving with a speed of `72 km//h`. If the force `10 N` per tonne , the power development is:

An engine accelerate a car of mass 800 kg to a speod of 72 km//h . If the frictional force is 10 N per tonne, the power developed by the engine is:

A train of mass 800 metric tons is moving with a velocity of 72 KMPH. If the resistive force acting on the train is 10N per metric ton, the power of the engine is

A 100 m long train is moving at a speed of 60 km/h. Then, the train will cross a signal pole in

Two train are moving in a straight line in the same direction with a speed of 80 km/h. The relative velocity of one trains w.r.t. each other is

Two train are moving in a straight line in the same direction with a speed of 80 km/h. The relative velocity of one trains w.r.t. each other is

Two trains, each having a speed of 30 km//h , are headed towards each other

A truck can move up a road having a grade of 1.0 m rise for every 50 m with a speed of 18(km)//(h) . The resisting force is equal to (1)//(25) of the weight of the truck. With what speed the same truck moves down the hill with the same power?