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 is

Options

A. `m_(1_:m_(2)`
B. `M_(1)r_(1):m_(2)r_(2)`
C. `m_(1)r_(2):m_(2)r_(1)`
D. `1:1`

Answer

D

Explanation

`omega _(1): omega_(2)=(2pi)/(T_(1)):(2pi)/(T_(2)) " "As T_(1)=T_(2), omega _(1):omega_(2)= 1:1`.