Practical exercise 2:

Instructions for the student:

Determine the gravitational force between the Earth (with mass M = 6 x 10²⁴ kg) and a student with mass m = 50 kg, standing on:

а) on the sea shore (at a distance d = 6.38 х 10⁶ m from the Earth’s centre);

б) in an airplane at height of 10 000 m above the Earth’s surface.

Hint:

Use the formula for the gravitational force between two bodies. The gravitational constant is .