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Q.

A mass m is fixed at x=a on a parabolic wire with its axis vertical and vertex at the origin as shown in the figure. The equation of parabola is x2=4 ay. The wire frame is rotating with constant angular velocity ω about Y-axis. The acceleration of the bead is

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a

zero

b

a4ω2

c

2

d

ω2a

answer is B.

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Detailed Solution

The bead is moving on a circular path of radius a.

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So, the acceleration is 2.

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