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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

`b- 4d`

B

`-b,2c`

C

`b,2c`

D

`2c,-4d`

Text Solution

Verified by Experts

The correct Answer is:
C
`y = a + bt + ct^2 -dt^4`
`v = (dy)/(dt) = b + 2ct - 4dt^3`
at t = 0, v = b
`a = (dv)/(dt) = 2c - 12t^2`
at t = 0, a = 2c
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