Questions
A person travelling in a straight line moves with a constant velocity for certain distance ‘x’ and with a constant velocity for next equal distance. The average velocity v is given by the relation
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Correct option is C
As t1=xv1 and t2=xv2∴ v=x+xt1+t2=2xxv1+xv2=2v1v2v1+v2∴ 2v=1v1+1v2Similar Questions
A man moves from home to market which is at a distance of 2 km with a speed of 3 kmph. Finding the market closed he instantly returns home with a speed 6 kmph. The average velocity of the man in the total journey is
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