Answer to Question #101466 in Mechanics | Relativity for AbdulRehman

Question

The earth falls freely in a gravitational field that is largely due to the
moon7
. Moreover, the earth is surrounded by a sphere of liquid called the
ocean. Based on your answers to problem 1, do you expect the ocean to
be perfectly round? Draw a picture of its shape.

Answer 1

The surface of the water is not round. Differences in gravity cause tidal forces that push water in the direction of tidal bulges on Earth. Twice every day the sea comes in and goes out along our shores. This movement of water is called tides. Tides are caused by the gravity of both the moon and the sun “pulling” the water.