Question

Calculate the gravitational force between a 10-kg ball and a 20-kg ball placed at a separation of 5 m.

Answer 1

Given:
m1= 10kg
m2= 20kg
G= 6.673 x 10^-11Nm^2kg^-2 
r = 5
F = Gm1m2/r²
F = (6.673 x 10^-11 x 10 x 20)/5²
F = 6.673 x 8 x 10^-11
F = 53.3 x 10^-11 N

Answer 2

Answer:

$53.3 \times 10^{-11} N$

Explanation:

Gravitational force between two masses M1 and M2 with a force F acting and r being the distance between two objects. Gravity is fully covering the universe. Gravity pulls the weight.

The value is $9.8 \mathrm{m} / \mathrm{s} 2$ for gravity.  

M1 = 10kg

M2 = 20Kg  

F $=G M 1 M 2 / r 2$

Where

• F= force of gravity
• G= Acceleration due to gravity
• R= distance between the two objects
• M=mass of one object

M2 mass of the other object  

$F =(6.67 \times 20 \times 10) / 25$

$F=53.3 \times 10^{-11} N$