Let's say a thief is running on a train with 12km/hr the police car is moving with 80km/hr if the speed of the train is 60km/hr what is the speed of the thief w. r. t police car
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speed of thief = 12 + 60 km/hr = 72 km/hr
speed of police = 80 km/hr
speed of thief w.r.t police = 72-80 km/hr = -8km/hr
speed of police = 80 km/hr
speed of thief w.r.t police = 72-80 km/hr = -8km/hr
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