Circular MotionHard
Question
Two racing cars of masses m1 and m2 are moving in circles of radii r and 2r respectively ; their angular speeds are equal. The ratio of the time taken by cars to complete one revolution is :
Options
A.m1 : m2
B.1 : 2
C.1 : 1
D.m1 : 2m2
Solution
Speed v1 = 
v2 =
ω1 =
⇒ ω2 = 
ω1 = ω2 ⇒
= 
Ans.
v2 =
ω1 =
⇒ ω2 = ω1 = ω2 ⇒
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