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A car is moving along a straight road with a uniform acceleration. It passes through two points P and Q separated by a distance

A car is moving along a straight road with a uniform acceleration. It passes through two points P and Q separated by a distance with velocity 30 km/h and 40 km/h respectively. The velocity of the car midway between P and Q is (a) 33.3 km /h (c) 252 km/h (b) 20/2 km/h (d) 35 km/h

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