Laws Of Motion Question 343
Question: A particle of mass m rotates with a uniform angular speed$ \omega $ . It is viewed from a frame rotating about the z-axis with a uniform angular velocity$ {{\omega } _{0}} $ . The centrifugal force on the particle is:
Options:
A) $ m{{\omega }^{2}}r $
B) $ m{{\omega }^{2}}r $
C) $ m( \frac{\omega +{{\omega } _{0}}}{2} )a $
D) zero
Show Answer
Answer:
Correct Answer: B
Solution:
[b] The centrifugal force on the particle $= mass \times acceleration of the frame $
$=\text{ }m\times {{\omega } _{0}}^{2}\text{r=m}{{\omega } _{0}}^{2}\text{r}$
