Physics@Brock

Physics Department

PHYS 1P21/91
2012 SU

Introduction

Rotational Motion

Work,Energy,Momentum

Oscillations

Special Relativity

Formula Sheet

Calendar entry

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Home > Courses > 1P21_Razavi > Dynamics

Mechanics and Waves

Introduction
Kinematics: motion in one and two dimensions
Dynamics

Newton's Laws

Newton's First Law of Motion
Newton's Second Law of Motion

calibrating a "force meter"
acceleration is proportional to force
acceleration is inversely proportional to mass
Ex: astronauts pushing asteroid, FBD
Ex: multiple forces acting on block

Weight

Newton's Law of Universal Gravitation
Ex: Calculating g

Normal Forces

molecular "spring mattress" is the origin of normal force
Ex: push mower
Ex: skier on slope

Tension

Ex: blocks connected by string via pulley

Friction

molecular "cold welds" is the origin of friction
Ex: accelerating shopping cart
Ex: coin on incline

Newton's Third Law of Motion

examples of action-reaction force pairs
Ex: single force acting on two blocks

Non-equilibrium applications of Newton's 2nd Law

Ex: apparent weight in an elevator