A thief is running on a train with 12 kilometre per hour the police car is moving with 80 km per hour speed if of the train is 60 km per hour then what is the speed of the with respect to police car ?
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Solution
Speec of the train = 60km/hr speed of man running on the train = 12km/hr speed of police car = 80km/hr
Speed of man with reference to ground = speed of train with referene to ground + speed of man with refernce to train = 60 + 12 = 72km/hr
Speed of man with respect to car = speed of man with respect to ground - speed of police with respect to ground = 72km/hr - 80km/hr = -8km/hr