Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • School
  • A person travelling along a straight Road for half the distance with the velocity V1 and the remaining half distance with velocity V2 the average velocity is given by

A person travelling along a straight Road for half the distance with the velocity V1 and the remaining half distance with velocity V2 the average velocity is given by

Answers (1)

best_answer

Let body covers first d/2 distance in time t1 and the remaining d/2 distance in time t2

Total distance covered by body = d

\begin{array}{l} \mathrm{V}_{\mathrm{av}}=\frac{\mathrm{d}}{\mathrm{t}_{1}+\mathrm{t}_{2}} \\\\ \mathrm{V}_{\mathrm{av}}=\frac{\mathrm{d}}{\frac{\mathrm{d}}{2 \mathrm{v}_{1}}+\frac{\mathrm{d}}{2 \mathrm{v}_{2}}}=\frac{\mathrm{d}}{\mathrm{d}\left(\frac{\mathrm{v}_{1}+\mathrm{v}_{2}}{2 \mathrm{V}_{1} \mathrm{V}_{2}}\right)} \\\\ \mathrm{V}_{\mathrm{av}}=\frac{2 \mathrm{V}_{1} \mathrm{V}_{2}}{\mathrm{V}_{1}+\mathrm{V}_{2}} \end{array}

Posted by

avinash.dongre

View full answer

Similar Questions

Latest Question