Two toys cars of masses 2 kg and 4 kg are moving in circles of radii 5.5 m and 11 m , respectively.

Question

Two toys cars of masses 2 kg and 4 kg are moving in circles of radii 5.5 m and 11 m , respectively. Their speeds are such that they make complete circles in the same time. The ratio of their centripetal acceleration is

Professor PC Thomas Classes · Answer

(b) : Centripetal acceleration, $a_c=\omega^2 r \because \quad \omega=\frac{2 \pi}{T}$ As $T_1=T_2 \Rightarrow \omega_1=\omega_2 \because \quad \frac{a_{c_{12}}}{a_{c_2}}=\frac{r_1}{r_2}=\frac{5.5}{11}=\frac{1}{2}$ Numerical Value Type Questions