Tue July 03, 2012 By: Tejaskumar Hiteshkumar Gajjar

A car travelling at 60 km/h overtakes another car travelling at 42km/h. Assuming each car to be 5m long, find the time taken during the overtake and the total road distance used for the overtake.

Expert Reply
Wed July 04, 2012
Relative velocity of the faster car : v =60-42 = 18 kmph = 5 m/s
total distane the faster car has to travel in respect to other car in order to overtake it completely will be 10 m
Hence: time taken is t = 10/5 = 2 s
Road distance used will be the absolute distance travelled by the faster car while overtaking i.e. 2* 50/3 = 100/3 m
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