How Strong is the Gravitational Pull Between Two Students?

In summary, gravitational attraction is a natural phenomenon in which objects with mass are attracted to each other due to the force of gravity. It works by the principle of mass attracting mass and is caused by the curvature of space and time by mass. The effects of gravitational attraction can be seen in the orbits of planets, formation of galaxies, tides on Earth, and more. While it cannot be directly manipulated, its effects can be altered through the use of other forces.
  • #1
dance_sg
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Homework Statement


what is the gravitational attraction between two students with masses of 70 kg and 50 kg, if they are 1.5 m apart?

Homework Equations


Fg=Gm1m2/r^2


The Attempt at a Solution


so my Fg is 6.67 x 10^-11, m1 is 70 kg and m2 is 50 kg. for my radius, do i just use the 1.5 m and plug it into the formula? or no i need to do something else?
 
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  • #2
http://www.school-for-champions.com/SCIENCE/gravity_gravitation.htm

that sounds correct. The force should be very small.
 

1. What is gravitational attraction?

Gravitational attraction is a natural phenomenon in which objects with mass are attracted to each other. This is due to the force of gravity, which is a fundamental force of nature that exists between all objects with mass.

2. How does gravitational attraction work?

Gravitational attraction works by the principle of mass attracting mass. The larger an object's mass, the stronger its gravitational pull. This pull is also dependent on the distance between the two objects, with the force decreasing as the distance between them increases.

3. What causes gravitational attraction?

The cause of gravitational attraction is the curvature of space and time by mass. According to Einstein's theory of general relativity, mass causes a distortion in the fabric of space-time, creating a gravitational field that pulls objects towards it.

4. What are the effects of gravitational attraction?

The effects of gravitational attraction can be seen in the orbits of planets around the sun, the formation of galaxies, and the tides on Earth. It is also responsible for keeping objects on the surface of the Earth and for the spherical shape of planets and stars.

5. Can gravitational attraction be manipulated?

As a fundamental force, gravitational attraction cannot be directly manipulated. However, its effects can be altered through the use of other forces, such as electromagnetic and nuclear forces, to achieve desired results, such as launching satellites into orbit or landing spacecraft on other planets.

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