AST 2002 Lecture Notes - Lecture 4: Net Force, Fokker E.Ii
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100 kilometers per hour going due north b. ii. A vector: the car has an acceleration if its velocity is changing in any way, whether in speed or direction or both c. i. Ex: you can have acceleration if your speed does c. i. 2. not change but your direction does (turning) A vector: one of the most important types of acceleration is the acceleration caused by gravity d. i. The acceleration of a falling object us called the acceleration of gravity d. ii. The acceleration of gravity is about 10 meters per second per second (10 m/s^2: an objects momentum is the product of its mass and its velocity; that is, momentum = mass x velocity e. i. The only way to change an object"s momentum is to apply a force to it e. ii. The mere presence of a force does not always cause a change in momentum e. ii. 1. Weight depends both on your mass and on the forces acting on your.
