• Chapter 5.pdf (better for printing)
• Problem 1
• Problem 2
• Problem 3
• Problem 4
• Problem 5

• Problem 6
• Problem 7
• Problem 8
• Problem 9
• Problem 10
• Problem 11

(Vector quantities are notated by bold type)

Synopsis:

• Force causes acceleration. This acceleration, as well as the force, is governed by Newton's three laws of Motion. The specific forces involved are gravity, weight, Normal force, friction, and tension.

• Force causes a change in velocity, or acceleration. 
  - Unit of Force is the Newton (N) (kgm/s²)
  - mass is measured in kilograms (kg)
  - acceleration is measured in m/s²
  - Force equal mass times acceleration (F=ma)
• The resultant force and acceleration are vectors, pointing in the same direction as the force
• Mass is scalar

1. Inertia - An object at rest remains at rest, an object in motion remains in motion when there is no force acting upon it.
   -If there is no acceleration, the Net Force = 0
2. (åF=ma) The sum of all forces acting on an object equals its mass times acceleration.  
3. For every action, there is an equal and opposite reaction.  (If A acts on B, B acts reacts equally and oppositely on A)
   

1. Weight - The pull on a mass by an astronomical object. [Ex. On Earth, weight equals mass times gravity W=(Mass) (Acceleration due to Gravity)]
2. Normal - Force perpendicular to the surface on which an object rests. 
3. Friction - Resistance between an object and it's surroundings. Directed along the surface, opposite to the applied force.
4. Tension - Force "T" on a cord pulled taught. The force is directed towards the center of the rope. 

IV. Problem Types

1. Force and Direction
2. Normal Force 
3. Weight
4. Tension on Rope
5. Inclined Plane
   

V. TIPS

1. Read Force problems several times.
   -try to find exactly what needs to be solved
2. Draw two figures: a picture and a free body diagram
3. Know what your problem deals with
4. Use caution when choosing axes
5. The Normal force is only equal to the y component of the force of gravity if vertical acceleration is 0 and if it is on a horizontal surface.

VI. Links

1. Newton's III Laws of Motion
2. Types of Forces
3. Newtonian Mechanics
4. Sir Isaac Newton
5. Forces

This project is made possible by the combined efforts of:

Rajvir Goomer, Moez Jaffer, Chris Kesge, Sri Krishna Mukkamala, Mintoo Riat, Daniel Warshaw