This document is an assignment from a General Physics 101 course. It contains 6 multi-part physics problems involving vector addition and subtraction, finding magnitudes and directions of vectors, and using trigonometric functions to solve problems graphically and analytically. The instructor is Dr. Said Moh'd Azar.

1. Al-Farabi College
Name: …………………
General Physics 101 PHYS
Assignment III
Instructor: Dr. Said Moh’d Azar
Ch#2
1- Figure 2.18 shows a collection of vectors that can be combined in various ways. For
example, A+C=B. Find (a) E+C; (b) A+F; (c) A+D; (d) E+A; (e) E+2A; (f) A-B; (g)
B-A; (h) C-A.
2- In figure below, for what value of θ will C=A+B have (a) a maximum magnitude,
and (b) a minimum magnitude? (c) Find C when θ = 90°.
B=12
θ
A=5

2. 3- A vector has an x component of -10 and a y component of +3. (a) Draw a set of x-y
axes and show the vector. (b) Calculate the magnitude and direction of the vector.
4-
= 3 ̂ + 2 ̂,
= 4 ̂ − ̂. Find the magnitude of (a) A+B; (b) A-B; (c) 2B.
5-
= 2 ̂ + 4 ̂, Find the magnitude and direction of (a) A; (b) –A.
6- If θ=72° in figure below, find (a) the direction and magnitude of C=A+B by
constructing a drawing using a ruler and protractor; (b) the direction and magnitude
of C using the component method.
B=12
θ
A=5