A train is moving towards East with a speed 20 m/s. A person is running on the roof of the train with a speed 3 m/s against the motion of train. Velocity of the person as seen by an observer on ground will be :

A train is moving with a speed of 54 km/h. A monkey is running on the roof of a train against its motion with a speed of 5 ms. w.ut the train. The velocity of the monkey as observed by a man on the ground is :

A train goes with a speed of 20 m/s what is the speed of train in km/h?

A 120 m long train is moving towards west with a speed of 10 m//s . A bird flying towards east with a speed of 5 m//s crosses the train. The time taken by the bird to cross the train will be

Two parallel rail tracks run north-south. Train A moves north with the speed of 15m/s and train B moves south with the speed of 25 m/s . What is the velocity of a monkey running on the roof of the train A against its motion (with a velocity of 5 m/s with respect to the training A)as observed by a man standing on the ground?

Two parallel rail tracks run north-south. Train A moves north with a speed of 54 km h^-1 and train B moves south with a speed of 90 km h^-1 .Velocity of a monkey running on the roof of the train A against its motion (With a velocity of 18 km h^-1 with respect to the train A) as observed by a man standing on the ground?

A train moves in north direction with a speed of 54 km/hr. and a monkey running on the roof of the train, against its motion with a velocity of 18km/hr. with respect to the train, then the velocity of monkey as observed by a man standing on the ground:-