Answer to Question #20288 in Mechanics | Relativity for Sherehan

Question

A Car Of Uniform Velocity 25 m/Sec Moving Behind A Motorcycle Of Uniform velocity 20 m/sec
If The Distance Between Them Is 360 ,Calculate The Time Elapsed For The Car To Overtake The Motorcycle .

Answer 1

V1 = 25m/sec - a velocity of the car
V2 = 20 m/sec - a velocity of the motorcycle
V12 = V1 - V2 = 5 m/sec - a relative velocity
t = L/V12 = 360/ 5 = 72 sec
L - the distance between motorcycle and car

Answer: The Time Elapsed For The Car To Overtake The Motorcycle Equal 72 seconds.