Question

The earth rotates through 1 complete revolution every 1,440 minutes. Since the axis of rotation is perpendicular to the equator, you can think of a person standing on the edge of a disc that is rotating through 1 complete revolution every 1,440 minutes. Find the angular velocity of a person standing on the equator

Answer 1

Let's make this clear:
\[\omega_e=1 \text{ rev/min} \]
The angular velocity of that person is the same with earth's angular velocity. But not the tangential velocity.

Answer 2

so when i find the angular velocity of earth then its the same for the person?

Answer 3

Correct

Answer 4

thank you :)

Answer 5

Okay :)

Answer 6

wait, how do i find the angular velocity when all i have is minutes?

Answer 7

You also have 1 revolution, which is \(2\pi \text{ rad} \)

Answer 8

got it! thanks