Question

A person travelling on a straight line moves with a uniform velocity v1 for some time and with uniform velocity v2 for the next equal time. The average velocity v is given by
(a) v= (v1+v2)/2

(b) v=√v1v2
(c) 2/v=(1/v1+1/v2)
(d) 1/v=(1/v1+1/v2) Concept of Physics - 1 , HC VERMA , Chapter "Rest and Motion : Kinematics

Answer 1

Correct Answer is a:v= (v1+v2)/2

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Explanation:
let t be the time related to each velocityTotal distance= v1t1+v2t2Total time =2tHence average velcoity= total distance/total time=v1t1+v2t2/2t=v1+v2/2

Answer 2

friends hope this may help u