Two particle of equal masses are resolving in circular paths of radius r1 and r2 respectively with the same speed. The ratio of their centripetal force is:
Correct answer: A. A
- A. A
- B. B
- C. C
- D. D
Explanation
The ratio can be calculated as: Fc(1)=mv^2/r1 and Fc(2)=mv^r/r2 Divide Fc(1) by Fc(2): Fc(1)/Fc(2)=(mv^2/r1)/(mv^2/r2) = r2/r1 So option A is correct
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About Angular and Linear Quantities
Rotational motion relates angular displacement, angular velocity and angular acceleration to linear displacement, tangential velocity and tangential acceleration through the radius. Questions use radians, v equals r omega and tangential acceleration, while distinguishing tangential velocity from centripetal acceleration and angular quantities from their linear counterparts.
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