Question

Mr. Gewanter, whose mass is 60 KG, is doing a physics demo in front of the classroom. How much gravitational force does he exert on 55 KG Martha, 1.5 meters away?

Answer 1

F = 9.79 x 10⁻⁸ newton

Step-by-step explanation:

Given,

The mass of Mr. Gewanter, M = 60 Kg

The mass of Martha, m = 55 Kg

The distance between them, d = 1.5 m

The gravitational force between them is given by the formula

F = GMm/d² newton

Substituting the given values in the above equation

F = (6.673 x 10⁻¹¹ x 60 x 55)/1.5²

= 9.79 x 10⁻⁸ newton

Hence, the gravitational force acting on Martha due to Mr. Gewanter is, F = 9.79 x 10⁻⁸ newton