00:01
In the question they given vectors i bar equal to i and j bar equal to j.
00:06
Here we have to find out to resolve the vectors a bar, b bar, v bar, w bar into components.
00:14
In this figure we have some modifications easy to understandable.
00:21
It is 0 minus 1, minus 2, minus 3.
00:26
Right side 1, 2, 3.
00:31
1 2 3 here minus 1 minus 2 it is u it is b it is v it is a we have to find out these 4 vectors into components first a bar in this angle is theta so we have degrees 45 degrees 45 degrees here also same theta a bar equal to the first vector is bar a bar equal to 2 cos theta i plus 2 sine theta i here theta value is 45 degrees so we can write 2 cos 45 degrees i plus 2 sign 45 degrees j here i j that equal to cos 45 is 2 by root 2, cos 45 is 1 by root so 2 1 by root to i plus sign 45 is 1 by root to j.
01:52
Here the components of a bar is a bar equal to root 2 we command root 2 root 2 plus root 2j that equal to we can write this vector in this form a bar equal to 2 i plus 2 j it is in the form of component it is the solution of a vector here we have to find vector into component the next question b here vector we have to find out into components.
02:42
B bar equal to same b cos theta i plus b sine theta j.
02:49
Here we have to take this values in this line.
02:54
Here b value the vector is 3 and minus 1...