A particle moves in a circular path of radius 40cm as shown. Find angular velocity of particle wrt an axis passing through centre of the circle and perpendicular to plane of the circle.
A
15rad/s
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B
12rad/s
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C
16rad/s
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D
14rad/s
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Solution
The correct option is B12rad/s We know that relation between speed and angular velocity is,
ωAC=(vAC)⊥AC
Given vA=4.8m/s, So, vAC=vA=4.8m/s
As the radius is 40cm, the distance of AC will be 40cm=40100m