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The acceleration of a particle moving al...

The acceleration of a particle moving along x-axis is given by a = 6t. Initially it has a velocity of ` 4m//s` along negative x-direction and it is at the origin. When will it return to the origin (in sec.)?

A

3

B

4

C

2

D

1

Text Solution

Verified by Experts

The correct Answer is:
C
a = 6t
`v implies 3t^(2)-4`
`ximplies t^(3)-4t`
`x = 0 implies (t^(2)-4)`
t = 0.2
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