Question

1.
A person travelling in a straight line moves with a
constant velocity v, for certain distance 'x and with
a constant velocity v, for next equal distance. The
average velocity v is given by th relation
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Answer 1

Displacement  during the velocity v1 will be x1=v1t

Displacement  during the velocity v2 will be x2=v2t

Average velocity will be timeDisplacement=t+tx1+x2=2tv1t+v2t=2v1+v2

Answer 2

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