Question

The velocity of a particle moving along x-axis is given by v=x²-x, where x is in metre and v in m/s. What is its position, when velocity is minimum?​

Answer 1

Answer:

Correct option is

D

30

v=x

2

+x

⇒

dx

dv

=2x+1

∴a=

dx

vdv

=(x

2

+x)(2x+1)

∴atr=2

a=(4+2)(4+1)

=30m/s

2

∴ Option D is correct answer.

Explanation:

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