Gravity 2
Here we learn how to use the equation properly, in order to calculate gravitational forces between objects. This is easy!Example 1
Let one mass m1 be 50kg
Let the other mass m2 be 120kg
Let the masses be 3m apart.
Calculate the size of the force. “Notice the use of brackets.”
Let the other mass m2 be 120kg
Let the masses be 3m apart.
The force is very small, which is why you cannot really notice the effects.
Remember that m1 and m2 “pull” each other equally hard.
Example 2
F = 0,0002N
m1 = 8000kg
m1 unknown
r = 300cm (convert to meters!)
m1 = 8000kg
m1 unknown
r = 300cm (convert to meters!)
Calculate the mass of m2.
You got to be good with your calculator!
In this example, we are still using the same equation, just solving for another unknown.
