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Newton's Law of Gravity Tutorial

  


Newton's Law:
     Newton's Law of Gravity states that 'Every particle attracts every other particle with a force that is proportional to the product of their masses and inversely proportional to the distance between them.

Newton's Law of Gravity Formula:
Gravitational Force:
Mass of Object 1:
Mass of Object 2:
Distance Between the Objects:
where,
G = Universal Gravitational Constant = 6.6726 x 10-11N-m2/kg2
m1 = Mass of Object 1
m2 = Mass of Object 2
r = Distance Between the Objects.

Newton's Law of Gravity Examples:
Case 1: Determine the force of gravitational attraction between the earth 5.98 x 1024 kg and a 70 kg boy who is standing at sea level, a distance of 6.38 x 106 m from earth's center.
 m1 = 5.98 x 1024 kg, m1 = 70 kg, r = 6.38 x 106 m, G = 6.6726 x 10-11N-m2/kg2
  Step 1: Substitute the values in the below Gravitational Force formula:
           
This example will guide you to calculate the Gravitational Force manually.

Case 2: Find the mass of one object if the magnitude of the gravitational force acting on each particle is 2 x 10-8, the one mass is 25 kg and the objects are 1.2 meters apart
 F = 2 x 10-8, m2 = 25 kg, r = 1.2 m, G = 6.6726 x 10-11N-m2/kg2.
  Step 1: Substitute the values in the below Mass formula:
           
This example will guide you to calculate the Mass of the object manually.



Related Calculator:
>> Newton's Law of Gravity Calculator.
>> Planetary Motion of Kepler's Third Law Calculator.
>> Gravitational Acceleration Calculator.
>> Escape Velocity / Speed Calculator.

Related Topic:
>> How to calculate Planetary Motion using Kepler's Third Law.
>> How to calculate Gravitational Acceleration.
>> How to calculate How to calculate Escape Velocity / Speed.

This tutorial will help you dynamically to find the Newton's Law of Gravity problems.