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Position time graph is shown which is a ...

Position time graph is shown which is a semicircle form `t = 2` to `t = 8sec`. Find time `t` at which the instantaneous velocity, is equal to average velocity over first `t` second.

A

`4.8sec`

B

`3.2sec`

C

`2.4sec`

D

`5sec`

Text Solution

Verified by Experts

The correct Answer is:
B
`(Deltat)/(3) = sin 37^(@)`
`(5-t)/(3) = 0.6`
`t = 5-1.8`
`t = 3.2 sec.`
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