Linear Kinetics: Explaining the Causes of Linear Motion
Objectives
- Explain Newton's three laws of motion
- Apply Newton's second law of motion to determine the acceleration of an object if the forces acting on the object are known
- Apply Newton's second law of motion to determine the net force acting on an object if the acceleration of the object is known
- Define impulse
- Define momentum
- Explain the relationship between impulse and momentum
- Understand the basics of Newton's
Universal Law of Gravity
Slides that
summarize the information, as presented in class,
for Chapter 3.
Summary
Newton's laws can be used to explain
the basics of linear kinetics.
Newton's first law explains that objects do not change their motion
unless acted upon by a net external force; this principle is
extended within the principle of the conservation of momentum.
Newton's second law explains what happens
to an object if a net external force does act on it; it will
accelerate in the direction of the force at a magnitude that is
proportional to the force and inversely related to the object of the
mass.Impulse is an extension of
Newton's second law.Newton's
third law states that for every force, there is an equal and
opposite force acting on another object.
Newton's law of universal gravitation gives
us the basis for the force of gravity.
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