Questions are taken from the course book 'Physics with modern physics', Richard Wolfson & J.
M. Pasachoff,
Questions taken from course book pp 60 - 63
Three vectors A, B and C have the same length L and form an equilateral triangle, shown here
as fig. 1. Find the magnitude and direction of the vectors (a) A + B,(b) A - B,
( c) A + B + C , ( d ) A + B - C .
B A
Figure 1
C
