Kinematics Question 699
Question: Two racing cars of masses $ m _{1} $ and $ m _{2} $ are moving in circles of radii $ r _{1} $ and $ r _{2} $ 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) $ m _{1}:m _{2} $
B)$ r _{1}:r _{2} $
C) 1 : 1
D) $ m _{1}r _{1}:m _{2}r _{2} $
Show Answer
Answer:
Correct Answer: C
Solution:
As time periods are equal therefore ratio of angular speeds will be same. $ \omega =\frac{2\pi }{T} $
