Net Force Equations

How to go from a free body diagram to a net force equation. How to set up and use net force equations.

[nicknicky]

Thank you!! I had to review physics for MCAT. Its been 6 years since I took a physics class and this just hit the fundamentals I needed to move forward. I watched plenty of khan academy videos, but they do not teach it in a way that I understand it best.

[princessminina]

you just saved my life!!!! thank you you are awesome!!!

[kathygonzalez]

My professor teaches with a projector and points at diagrams with a laser, , , and goes by sooo fast. U are really good, , , no one would dislike physics if it was explained like this!

[MsBeezieboo]

Ahh this was wonderfully helpful!! Thank you, you made it so clear!!

[vincentnudalo]

wonderful i like this video it really helps me to answer my module thank you sir

[BlakeCreate]

I'm having difficulty once I get these equations I have no idea how to combine them...Do you have a video actually showing (Without numbers as my professor doesn't use numbers) of combining your x&y when you solve for something lets say acceleration?

[andykoma]

what is ma, does it only equal to horizontal forces?

[YAHOOOOOO]

is it possible for an object to be in motion, if no net force is acting on it? i don't understand why people say it is possible. If the net force is zero it means the forces are equilibrium since net force is the total force, so why will it move it the the forces are in equilibrium?

[GuerrasLaws]

Force does not exist physically like an object with mass. Force, as we know it, turns out to be nothing more than an expression to express an idea like one would use the word "Love" to express once feelings. Force or Net Force is not the initial cause of motion. Energy (applied energy) is the origin of motion and not Force. Example: Choose an object of your choices and without applying the energy from within you, try to push and pull by applying "only" the Force or Net Force. Meaning that Energy (applied energy) is the origin of motion and not "Force". Once Energy (E) is applied, it creates what is known as Momentum (p). When this Momentum (p), which is mass and velocity, comes in contact with an object(s), it makes a surface contact that will enable you to push and pull. Energy (E) and Momentum (p) or "Ep", are not to be confused with Kinetic Energy in any way. Without Energy, there is no Momentum. Without Momentum, there is no surface contact on an object(s) to push, pull, work, shaping objects, motion, gravity, magnetism, radiation, etc. Momentum does not and cannot exist without the applied Energy that creates it. Energy and Momentum or "Ep", is the only common denominator that links all fundamental forces of nature. Without Ep, all fundamental forces of nature would be inert or non-existence. ~Guadalupe Guerra