• Support PF! Buy your school textbooks, materials and every day products via PF Here!

Finding the gravitational force!

This is the last question I have on my study guide that I cant solve. My physics test is tomorrow and I just want to be ready for it. Please help me figure this one out!

What is the gravitation force on mass 1 if each mass is 2 kg?

O<---(5m)---->O mass3
I -
I -
(2m) -
I -
O - < mass1

Well I hope you can understand that.
I know that the hypotonuse is the square root of 29 so im guessing I need to use the formula F=F12+F13 to get the answer right or wrong?
Last edited:
well my crude attempt at a diagram didnt come out so good lol. But its supposed to look like a triangle.
If you're trying to use the net force, then you will want to use superposition, which is basically what you are implementing. If its an equilateral triangle then some components will cancel, depending on how the triangle is configured.

Physics Forums Values

We Value Quality
• Topics based on mainstream science
• Proper English grammar and spelling
We Value Civility
• Positive and compassionate attitudes
• Patience while debating
We Value Productivity
• Disciplined to remain on-topic
• Recognition of own weaknesses
• Solo and co-op problem solving