How Strong is the Gravitational Pull Between Two Students?

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SUMMARY

The gravitational attraction between two students with masses of 70 kg and 50 kg, separated by a distance of 1.5 m, is calculated using the formula Fg = Gm1m2/r^2. The gravitational constant G is 6.67 x 10^-11 N(m/kg)^2. Plugging in the values, the resulting force is approximately 1.56 x 10^-9 N, confirming that the gravitational pull is indeed very small.

PREREQUISITES
  • Understanding of Newton's Law of Universal Gravitation
  • Familiarity with the gravitational constant (G)
  • Basic algebra for manipulating equations
  • Knowledge of mass and distance units (kg and meters)
NEXT STEPS
  • Study the implications of gravitational forces in real-world scenarios
  • Explore gravitational force calculations involving different masses and distances
  • Learn about the applications of Newton's Law of Universal Gravitation in astrophysics
  • Investigate how gravitational forces affect objects in motion
USEFUL FOR

Students studying physics, educators teaching gravitational concepts, and anyone interested in understanding the fundamentals of gravitational attraction.

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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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http://www.school-for-champions.com/SCIENCE/gravity_gravitation.htm

that sounds correct. The force should be very small.
 

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