Kinematics Question 699

Question: Two racing cars of masses m1 and m2 are moving in circles of radii r1 and r2 respectively. Their speeds are such that each makes a complete circle in the same duration of time t . The ratio of the angular speed of the first to the second car it’s[NCERT 1980; MNR 1995; CBSE PMT 1999; UPSEAT 2000]

Options:

A) m1:m2

B)r1:r2

C) 1 : 1

D) m1r1:m2r2

Show Answer

Answer:

Correct Answer: C

Solution:

As time periods are equal therefore ratio of angular speeds will be same. ω=2πT



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