Question

. Given the mass of the earth as 6.4x1024 kg and radius 6400 m, find the angular momentum and rotational kinetic energy about its own axis assuming it to a sphere of uniform density.​

Answer 1

Explanation:

Assuming the earth to be sphere, calculate its moment of inertia about its own axis. If the angular velocity of the earth is 7.2x105 rad/s. Calculate kinetic energy of rotation of the earth. (Radius of the earth = 6400 km, mass of the earth M=6x10 kg)