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A particle is moving in a straight line....

A particle is moving in a straight line. Its displacement at time `t` is given by `s(I n m)=4t^(2)+2t`, then its velocity and acceleration at time `t=(1)/(2)` second are

A

`-2m//s,-8m//s^(2)`

B

`2m//s,6m//s^(2)`

C

`-2m//s,8m//s^(2)`

D

`2m//s,8m//s^(2)`

Text Solution

Verified by Experts

The correct Answer is:
A
`(A**)-2m//s,-8m//s^(2)`
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