Answer:
The answer is: Fg = 0.87 N
N is the unit of force and stands for Newton.
So the answer is 0.87 N.
Step-by-step explanation:
To calculate the force of gravity on a 1-kg mass if it were 6.4 x 106 m above Earth's surface, we can use the formula:
F = (G * M) / r^2
where:
F = force of gravity on the mass
G = gravitational constant (6.67 x 10^-11 N m^2/kg^2)
M = mass of the Earth (5.97 x 10^24 kg)
r = distance from the center of the Earth to the mass
Substituting the values, we have:
F = (6.67 x 10^-11 N m^2/kg^2 * 5.97 x 10^24 kg) / (6.4 x 10^6 m)^2
Simplifying the algebra, we have:
F = 0.87 N
Therefore, the force of gravity on a 1-kg mass at a distance of 6.4 x 106 m above Earth's surface is approximately 0.87 N.
The units of the force are newtons (N).