# 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 length of time t.Find the ratio of angular speed of the first car to that of the second car is.

### Asked by arpita | 28th Sep, 2014, 09:15: AM

Expert Answer:

### Angular velocity is the rate of change of angular displacement with time.
Given that both the cars complete one circle in the same time 't'
Angular speed of first car,ω_{1} = 2π / t
Angular speed of the second car, ω_{2} =2π /t
Therefore the ratio of angular speed of first car to that of second,
The ratio of angular speed of first car to that of second =1:1

_{1}= 2π / t

_{2}=2π /t

### Answered by Jyothi Nair | 28th Sep, 2014, 10:22: AM

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