PHY 2020 Lecture Notes - Lecture 4: Atwood Machine, Net Force, International System Of Units

• School: University of Florida
• Department: Physics
• Course: PHY 2020
• Professor: Sergei Obukhov

Document Summary

Also: acceleration = force/mass: massive in physics, something with a lot of inertia (aka a lot of substance/dense, units of force are measured in newtons. 4. 3: newton"s third law each action has an equal, opposite, and collinear reaction. It"s nearly impossible to find something with no forces, but much more common to find something with multiple forces pushing against it that cancel each other out (keeping objects stationary): an action-reaction pair always involves two different bodies. 4. 4: g = 10 m/s2, the force of gravity on the body = m x g. (mass x acceleration). This is known as the weight (force of gravity on a body; force = mass x g; measured in newtons) 4. 5: know how to use and apply newton"s laws, atwood machine example, * force of gravity and acceleration due to gravity (10 m/s2) are not the same!