A thief is running on a train with a speed of 12 km/hr. The police car is moving with the speed of 80 km/hr. If the speed of the train is 60 km/hr. What is the speed of thief with respect to the police car ?

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Solution

Speed of thief 12 km/hr
speed of train 60km/hr
Since tge thief is running inside a moving train,Resultant speed of thief=60+12=72km/hr.
Speed of police car=80km/hr
Speed of thief wrt police car=speed of thief speed of police car
=72-80= -8km/hr
For considering speed which is a scalat quantity,negative sign not needed.
Speed =8 km/hr

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Q. Let’s say a thief is running on a train with 12 km/h. The police car is moving with 80 km/h. If speed of the train is 60 km/h. What is the speed of thief w.r.t police car?

A thief is running on a train with the speed of 12 km/h. A police car is moving with speed of 80 km/h. If the speed of the train is 60 km/ h, what's the speed of the thief with respect to car. (Assuming that all are moving in same direction )

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