question_answer

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      [NCERT 1980; MNR 1995; CBSE PMT 1999; UPSEAT 2000]

A)             \[{{m}_{1}}:{{m}_{2}}\]

B)                      \[{{r}_{1}}:{{r}_{2}}\]

C)             1 : 1    

D)             \[{{m}_{1}}{{r}_{1}}:{{m}_{2}}{{r}_{2}}\]