A car is moving along a straight road wi...

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/(hr) and 40 km/(hr) respectively. The velocity of the car midway between P and Q is:

33.3 km/(hr)

`20sqrt(3) km/(hr)`

`25sqrt(2) km/(hr)`

35 km/(hr)

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