System of Particles and Rotational Motion - Result Question 18
18. Two racing cars of masses and are moving in circles of radii and respectively. If their speeds are such that each makes a complete circle in the same time, then the ratio of the angular speeds of the first to the second car is
(a)
(b)
(c)
(d)
[1995]
Topic 3: Torque, Couple and Angular Momentum
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Answer:
Correct Answer: 18. (d)
Solution:
- (d) We know that both the cars take the same time to complete the circle, therefore ratio of angular speeds of the cars will be
.