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A particle moves along the x-axis in suc...

A particle moves along the x-axis in such a way that its x-co-ordinate varies with time as `x = 2 – 5t + 6t^(2)`.
The initial velocity and acceleration of particle will respectively be-

A

`-5,12`

B

`0,12`

C

`-5,0`

D

`-5,-12`

Text Solution

Verified by Experts

`x=2-5t+6t^(2)`
Initial velocity at t=0, v=-5 m/sec
`because v=(dx)/(dt) =-5+6xx2xxt" "because a=(d^(2)x)/(dt^(2))=12" m/sec"^(2)`
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