Physics – Verizon Next Step Program

Mechanics

Week 1 Notes - Vectors

1.9) Trigonometry - right triangle 
A) Sin θ = Opposite / Hypotenuse
B) Cos θ = Adjacent / Hypotenuse
C) Tan θ = Opposite / Adjacent Pneumonic Device: SOH-CAH-TOA D) Pythagorean Theorom: Hypotenuse2 = Adjacent2 + Opposite2 or c2 = a2 + b2 3.1) Vectors and Scalars A) Scalar - magnitude only B) Vector - magnitude and direction 3.2) Properties of Vectors A) Equality - B) Adding Vectors: 3.3) Componenets of a Vector A) Ax = A cos θ Ay = A sin θ tan θ = Ay / Ax 4.5) Newton's Laws A) Free Body Diagram B) The Sum of the Forces is 0 ΣF = 0 Homework 1: Send me an e-mail at Mike@Kolta.net from the e-mail address that you will use for this class. State your full name and preferred name in the e-mail. pp. 21 q. 33, 35, 36 pp. 72 q. 1, 8, pp. 73, q. 11 pp. 105 q. 12, 13