An insect trapped in a circular groove of radius 12cm, moves along the groove steadily and completes 7 revolutions in 100s. What is the linear speed (in cm/s) of the motion?
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answer is 5.28.
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Detailed Solution
Thuis is uniform circular motion. ω=2πT=2πn=2π×7100=0.44rad/sec∴V=Rω=0.44×12=5.28 cm/sec