then a. Determine the speed of man with respect to the escalator. b. Determine the speed of the escalator. c. How much time would it take him to walk up the moving escalator?

A police van moving on a highway with a speed of 30 km h^(-1) Fires a bullet at a thief’s car speeding away in a same direction with a speed of 192 km h^(-1). If the muzzle speed of the buller is 150 m s^(-1), with what speed does the bullet hit thief’s car? . [...]

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). What is the a. relative velocity of B with respect to A? b. relaity of a monkey running on the roof of the train A against [...]

Suppose you are reding a bike with a speed of 10 m s^(-1) due relative to a person A person A who is walking on the ground towards east. If your friend B walking on the ground due west measures you speed as 15 m s^(-1), find the relative velocity between two refence frames A [...]

A person walks up a stationary escalation in t 1 ​ second. If he remains stationary on the escalator, then it can take him up in t 2 ​ second. If the length of the escalator is L, then a. Determine the speed of man with respect to the escalator. b. Determine the speed of [...]