Question

4. Assuming the orbital radius of the Moon is 3.85 x 108 m, find the linear speed of the moon.

Answer 1

Answer:

1037 m/s

Explanation:

The linear speed of an object in circular motion is given by:

where

is the angular velocity

r is the orbital radius

For the Moon, we know that

is the orbital radius

While we know also its orbital period:

So its angular velocity is

And therefore, the linear speed is