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Refer Q.139. The average acceleration of...

Refer `Q.139`. The average acceleration of the body from `t = 0` to `t = 15 s` is.

A

`1.25 m//s^2`

B

`4//7 m//s^2`

C

`5//6 m//s^2`

D

`7//6 m//s^2`

Text Solution

Verified by Experts

The correct Answer is:
D
Area upto `15 s = 175 m//s = v_2`
Velocity at `t = 15 s`
`a_(av) = (v_2 - 0)/(15) = (17.5)/(15) = (7)/(6) m//s^2`.
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