Physical science
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

the magnitude of gravitational force would be 20 N

Explanation:

therefore on a body of mass m by earth is

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 =

therefore F = 20 N.

the correct answer is option d

explanation:

i was wrong its d because they dont use cm when calculating square roots

i believe the answer is a.