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The distance covered by a particle in t ...

The distance covered by a particle in `t` second is given by `x=3+8t-4t^(2)`. After `1s` its velocity will be

A

0 unit

B

3 units

C

4 units

D

7 units

Text Solution

Verified by Experts

The correct Answer is:
A
Given `x=3+8t-4t^(2)`,
On differentiating both sides w.r.t `t` we get
`v=(dx)/(dt)=8-8t`
At `t=1, v=8-8-0` unit.
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