Vector A S is 2.80 cm long and is 60.0 above the x-axis in the first quadrant. Vector B S is 1.90 cm long and is 60.0 below the x-axis in the fourth quadrant (Fig. E1.35). Use components to find the magnitude and direction of (a) A S + B S ; (b) A S B S ; (c) B S A S . In each case, sketch the vector addition or subtraction and show that your numerical answers are in qualitative agreement with your sketch.

Notes for Physics 1 Week 1 MSU. Converting to other units and Estimating: Examples: 1. The fourteen tallest peaks in the world are referred to as “eightthousanders”, meaning their summits are over 8000m above sea level. What is the elevation, in feet, of an elevation of 8000m Solution: First of all, we need to read over the question and find out what the question is asking us. It says what is the elevation in feet, and we were given the elevation in meters. So that means we are changing from meters to feet. We know that 100cm = 1m, 1inch = 2.54cm, 12inches = 1 foot. Since we know that we can definitely convert from meters to feet. 8000m 100cm 1inch 1foot