Particles A and B move uniformly in the same direction around a circle with periods $T_A$ = 4 s and $T_B$ = 6 s. Which statements are correct?
Select all that apply

Question

Particles A and B move uniformly in the same direction around a circle with periods T_A = 4 s and T_B = 6 s. Which statements are correct?

G1 Physics · Accepted Answer

ω_A=2π/4=π/2 rad/s and ω_B=2π/6=π/3 rad/s. Relative angular speed is π/6 rad/s. Reunion time = 2π/(π/6)=12 s. Also LCM(4,6)=12 s, so both return together to the starting point after 12 s. Therefore D is false.