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a train is moving with a velocity 30m/s(North) relative to an observer on the ground. A car is moving at velocity 21m/s(S45Erelative to an observer

a train is moving with a velocity 30m/s(North) relative to an observer on the ground. A car is moving at velocity 21m/s(S45Erelative to an observer on the ground.

what is the velocity of a passenger on the train as observed by a passenger in the car? Give the magnitude in SI units and the direction to 2 decimal places.

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