Just my own personal questions concerning newtons laws.
For the most part I grasp all three laws to adequately take care of my homework, but I have some conceptual questions that keep bugging me.
when solving diagrams including net forces that are acting on an object, the sum of the forces (say acting in the y direction) are equal to zero. Take for example a block of Mass m at rest on a table, it has a F of gravity and a normal force acting on it, but since the object is at rest it has a force equal to 0.
so, my question is can forces that are acting on an object be equal to zero even though they are acting on the object?
It feels like a dumb question but its been a conceptual question eating at me for a while.
Thank you guys