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A point is moving along the parabola y^2...

A point is moving along the parabola `y^2 = 8x ` at the rate of 2m/s . The compoenent velocity parallel to the axis , when it is at the point (2,4) is

A

`2/sqrt2` m/s

B

2 m/s

C

4 m/s

D

16 m/s

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A
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