The driver of a car moving with uniform speed of 40 metre per second observes a truck approaching in the opposite direction with a speed of 20 metres per second calculate the speed of the car relative to that of the truck
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Since the two cars are moving in the same direction with same speed therefore relative speed between two cars is zero.
Let the relative speed of the third car be w.r.t the two cars.
Relative velocity of the third car:
(4/60)h
5km
=75km/h
Actual velocity of the third car:75−30=45km/h
Let the relative speed of the third car be w.r.t the two cars.
Relative velocity of the third car:
(4/60)h
5km
=75km/h
Actual velocity of the third car:75−30=45km/h
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