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A bead of mass m is located on a parabol...

A bead of mass m is located on a parabolic wire with its axis vertical and vertex at the origin as shown in figure and whose equastion is `x^(2) =4ay`. The wire frame is fixed and the bead is released from the point `y=4a` on the wire frame from rest. The tangential acceleration of the bead when it reaches the position given by `y=a` is

A

`(g)/(2)`

B

`(sqrt3g)/(2)`

C

`(g)/(sqrt2)`

D

`(g)/(sqrt5)`

Text Solution

Verified by Experts

The correct Answer is:
C
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