Question

What is the acceleration of a different speck of dust that is twice as far from the center of the disk?.

Answer 1

The acceleration of a different speck of dust is 40 m/s.

Since the radius is been given as double and angular velocity will be constant, we can calculate the centripetal acceleration as

a = (2r)ω²

If we substitute the given values of r= 2r , and ω²= 20m/s.

Then we have

$a= (2*20) = 40 m/s^2$

Therefore, acceleration of a different speck of dust is 40 m/s.

What is centripetal acceleration?

centripetal acceleration can be regarded as  acceleration of a body that is traversing a circular path.

CHECK THE COMPLETE QUESTIONS;

A speck of dust on a spinning dvd has a centripetal accelera- tion of 20 m/s2.

a. what is the acceleration of a different speck of dust that is twice as far from the center of the disk?

Learn more about centripetal acceleration at;

brainly.com/question/6217221