Question

How many rpm are needed to simulate $g=3.7m/s^2$?

• A. $0.662rpm$
• B. $0.821rpm$
• C. $0.783rpm$
• D. $0.918rpm$

Answer 1

The correct option is D $0.918rpm$

To achieve the desired value of $g$, we are to set:

$r{\omega }^2=3.7$

or, $\omega =\sqrt{\frac{3.7}{400}}rad/s$ $=\sqrt{\frac{3.7}{400}}\times \frac{60}{2\pi }=0.918rpm$