Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Physics Motion in a Straight Line Average velocity and average speed
A person travelling in a straight line moves with a constant velocity v1 for certain distance 'x' and with a constant velocity v2 for next equal distance. The average velocity v is given by the relation
1
\(\frac{v}{2}=\frac{v_{1}+v_{2}}{2}\)
2
v = \(\sqrt{v_{1} v_{2}}\)
3
\(\frac{1}{v}=\frac{1}{v_{1}}+\frac{1}{v_{2}}\)
4
\(\frac{2}{v}=\frac{1}{v_{1}}+\frac{1}{v_{2}}\)
5
None of the above/More than one of the above.