- #1

DaTario

- 1,039

- 35

Consider a platform with angular velocity ##\omega##. A particle on top of it has a velocity with only ##\hat \theta## component (no radial ##\hat r## velocity). In this case, the inertial forces read:

$$

F_{in} = 2m\omega V_\theta \, \hat r + m \omega^2 r \, \hat r

$$

If ##V_\theta = -(\omega r)/2## the intertial forces apparently cancel out. Is it possible? I am a bit confuse with this situation. The particle seems not to be even at rest wrt the lab reference frame.

Any comment is wellcome.

Best wishes,

DaTario