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The displacement of a particle is given ...

The displacement of a particle is given by `y = a + bt + ct^2 - dt^4`. The initial velocity and acceleration are respectively.

A

`beta, 4 s`

B

`-beta, 2gamma`

C

`beta, 2gamma`

D

`2r,-4delta`

Text Solution

Verified by Experts

The correct Answer is:
C
`x=alpha+betat+gammat^(2)-deltat^(4)`
`v=(dx)/(dt)=beta+2gammat-4deltat^(3)`
`a=(dv)/(dt)=2gamma-12deltat^(2)`
At `t=0, v=beta, a=2r`
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