STANDARD Physics Linear Speed MCQ Question
An insect trapped in a circular groove of radius 12 cm moves along the groove steadily and completes 7 revolutions in 100 s. The linear speed of the insect is
4.3 cm s⁻¹
5.3 cm s⁻¹
6.3 cm s⁻¹
7.3 cm s⁻¹
Correct Answer
Detailed Explanation
The radius r = 12 cm. The frequency v = 7/100 rps. The angular speed ω = 0.44 rad s⁻¹. The linear speed v = ωr = 5.3 cm s⁻¹.
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