The power required by engine of car of mass 1000 kg to accelerate it from rest to a speed of 72 km/h in 20 s is (1) 10 kW (2) 1 kW (3) 100 kW (4) 1000 kW​

If a car at rest, accelerates uniformly to a speed of 144 km//h in 20s , it covers a distance of

A car of mass 1000 kg accelerates uniformly from rest to a velocity of 15 m/s in 5 sec. The average power of the engine during this period in watts is :

Calculate the work done by the brakes of a car of mass 1000 kg when its speed is reduced from 20 m/s to10 m/s ?

A car of mass 1000kg accelerates uniformly from rest to a velocity of 54km//h in 5 seconds. Calculate (i) its acceleration (ii) its gain in KE (iii) average power of the engine during this period.

A car of mass 900 kg accelerates uniformly from rest to a speed of 60 km/h in a time of 2 s when traveling on a level road. If there is a constant resistance to motion of 20 N. Find the maximum power ( in kW) of the engine.

A pump is required to lift 1000 kg of water per minute from a well 20 m deep and ejects at a speed of 20 m/s. The power of engine is

An advertisement claims that a certain 1200kg car can accelerate from rest to a speed of 25m/s in a time of 5s. Calculate the average power in Kw the motor must produce to cause this accelartion. (Ignore friction losses)

The power output of an engine is 3 kW. How much work does the engine do in 20 s ?