A thief is running away on a straight road on a bike moving at the speed of 28 m/s. A policeman chases him in a car moving at the speed of 30 m/s. if the instantaneous separation of the bike from the car is 400 m, how long will it take for the policeman to catch the thief?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 200seconds.
Speed of thief = 28 m/s
Speed of policeman = 30 m/s
Distance between them = 400 m
Relative speed = 30 – 28 = 2 m/s
Time = Distance / Relative Speed
= 400 / 2 = 200 seconds