Question

PHYSICAL SCIENCE HELP

Question 11
An object of mass 2 kilograms is falling freely near Earth's surface. Which of the following options best approximates the magnitude of the gravitational force that Earth exerts on the object?
A
0.0 N

B
0.2 N

C
2 N

D
20 N

Answer 1

the magnitude of gravitational force would be 20 N

Step-by-step explanation:

therefore on a body of mass m by earth is
`(GMm)/(r^(2))`

where M is the mass of earth m is the mass of body, G is the gravitational constant and r is the distance of seperation from centre of earth.

therefore F =
`m* (GM)/(r^(2))=mg=10m`

therefore F = 20 N.