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A particle moves in straight line in sam...

A particle moves in straight line in same direction for 20 seconds with velocity `3 m//s` and the moves with velocity `4 m//s` for another 20 sec and finally moves with velocity `5 m//s` for next 20 seconds. What is the average velocity of the particle?

A

`3m//s`

B

`4m//s`

C

`5m//s`

D

zero

Text Solution

Verified by Experts

The correct Answer is:
B
`V_(av)=(v_(1)+v_(2)+v_(3))/(3)`
`=(3+4+5)/(3)=(12)/(3)= 4m//s`
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