# Question: The Earth rotates on its axis once a day and

The Earth rotates on its axis once a day and revolves around the Sun once a year.

(a) Which is greater, the rotating angular speed or the revolving angular speed? Why?

(b) Calculate both angular speeds in rad/s.

(a) Which is greater, the rotating angular speed or the revolving angular speed? Why?

(b) Calculate both angular speeds in rad/s.

## Relevant Questions

A little boy jumps onto a small merry-go-round (radius of 2.00 m) in a park and rotates for 2.30 s through an arc length distance of 2.55 m before coming to rest. If he landed (and stayed) at a distance of 1.75 m from the ...A wheel of radius 1.5 m rotates at a uniform speed. If a point on the rim of the wheel has a centripetal acceleration of 1.2 m/s2, what is the point’s tangential speed? In performing a “figure 8” maneuver, a figure skater wants to make the top part of the 8 approximately a circle of radius 2.20 m. He needs to glide through this part of the figure at approximately a constant speed, ...A merry-go-round accelerating uniformly from rest achieves its operating speed of 2.5 rpm in 5 revolutions. What is the magnitude of its angular acceleration? From the known mass and radius of the Moon (see the tables inside the back cover of the book), compute the value of the acceleration due to gravity, gM, at the surface of the Moon.Post your question