For a man who walks 720m at a uniform speed of 2m/s ,then runs at a uniform speed of 4m/s for 5 minute and then again walks at a speed of 1m/s for 3 minutes. His average speed is

A boy travels a distance 150 m in 1 minute. His speed is :

A body moves at a speed of 100 ms^(-1) for 10 s and then moves at a speed of 200 m s^(-1) for 20 s along the same direction. The average speed is …………………………….,

A man travels 200 km distance with the speed of 40 m/s and next 50 km with the speed of 10 m/s . Find the average speed of man.

A man can walk 8 km in 1 hour 15 minutes .Find his speed.

Find average speed of 40m/s and 50m/s.

A man walks for 1 minute at a speed of 1 m s^(-1) and then runs for 1 min at a speed of 3 ms ^(-1) along straight track, What is the average speed of the man?

A man moves up on a 3 km long incline road with speed of 2m/s , then on a 3 km level road with speed of 3 m/s and moves down on a 3 km long incline road with 6 m/s. Find the average speed of man.

A man of height 1.7 m walks at a uniform speed of 6.6 m/min from a lamp post which is 5m high.Find the rate at which the length of his shadow increases.

A body of mass 10 kg moving at a height of 2 m, with uniform speed of 2 m/s. Its total energy is

A particle travels half the distance of a straight journey with a speed 5 m/s. The remaining part of the distance is covered with speed 6 m/s for half the remaining time, and with speed 4 m/s for the other half of the remaining time. The average speed of the particle is