When a diver jumps off a diving board gravity pulls him or her to the water What is the reaction force to Earth's gravity true or false?

Answer 1

The diver and the Earth actually pull on each other with the same force. But with Force = mass x acceleration, rearrange that to: Acceleration = Force / mass. With such a large mass, the Earth is accelerated by a miniscule amount. Compared to the acceleration of the diver, it is not noticed.

Answer 2

It's important to remember that the gravitational "pull" is always mutual. It's a force of

attraction between two masses, with equal forces acting on each mass. This fact can

dispel a lot of the mystery that often seems to surround the behavior of gravity.

There is a mutual gravitational force between the diver and the earth. The diver and the

earth both accelerate toward each other. The ratio of their respective accelerations is the

inverse of the ratio of their masses.

A force directed toward the center of the earth acts on the diver, and accelerates the diver

in that direction at the rate of 9.8 meters per second2.

A force directed toward the center of the diver acts on the earth, and accelerates the earth

in that direction, at a somewhat smaller rate due to its somewhat larger mass.