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A particle moves along the x-axis such t...

A particle moves along the x-axis such that its co-ordinate (x) varies with time (t), according to the expression :`x=2-5t+6t^(2), where x is in metres and t is in seconds. The initial velocity of the particle is :-

A

`-5 m//s`

B

`-3 m//s`

C

`6 m//s`

D

`2 m//s`

Text Solution

Verified by Experts

The correct Answer is:
A
`x=2-5 t +6t^(2)`
`v=-5+12t" " (v-(dx)/(dt))`
`t_(t=0) =-5 m//s `
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