Presentation is attached below
I. Force A. Force: a push or a pull B. Force is measured in Newtons (N) C. Examples: pushing a box, hitting something, pulling on a rope, pushing the gas pedal on a car II. Free Body Diagrams A. Free Body Diagrams: used to show all forces acting on an object B. Examples 1. A person pushing a box (diagram) 2. Two people pushing a box (diagram) 3. Person skydiving with a parachute (diagram) III. Net Force A Net Force: the resulting total force acting on an object B. Examples 1. One person pulling a box with a 15 N force to right while another pulls with a 6 N force to the left. Net force? 9 N to the right 2. Two people pushing a box to the right with 7 N forces, one pushing to the left with a 20 N force. Net force? 6 N to the left 3. Person skydiving with a parachute weighs 50 N, and the parachute provides 20 N of resistance. Net force? 30 N down Attachmments Net Force + Equilibrium Force Worksheet - a worksheet reviewing problems from the text book on net force and equilibrium force |
