Physics
Chapter 6 Outline
Motion in Two Dimensions
Overview - We will study projectile motion. -Independance of motion in two dimensions. -Objects launched horizontally. -Objects launched at an angle Periodic Motion. -Circular motion. -Changing circular motion;Torque. -Simple harmonic motion.
Objective: - Understand the concepts of projectile and periodic motion and to solve problems in these areas.
Start Date: - September 26, 2006
Due Date: - September 29, 2006
Suggested Timeframe: -
Assignment: - Projectile Motion:
-The horizontal and vertical motions of a projectile are independent of one
another, in the absence of air resistance.
-ignoring air resistance, a projectile moves with constant velocity in the
horizontal direction and constant acceleration in the vertical direction.
-The trajectory of a projectile depends on the horizontal and vertical
components of its initial velocity.
Periodic Motion.
-A body moving in uniform circular motion has a constant speed and is
accelerated toward the center of the circle.
-Torque is the product of the force and the lever arm. Torque can either start,
stop or change the direction of the rotation.
-An object moving with simple harmonic motion moves back and forth with a
constant period.
-Mechanical resonance can greatly increase the amplitude of SHM when a small,
periodic net force acts on an oscillating object at its natural freequency.
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