00:01
In this question we are given with two vectors we can call it as vector a which is equal to 65 meter at an angle 65 degree and the second vector we can call it as vector b equal to 80 meter at 135 degree we need to find the direction of the resultant vector that is the vector sum of this to vectors a and b.
00:33
So we can call the resultant vector are equal to vector sum of vector a and p.
00:41
We know that vectors are quantities having both magnitude and direction.
00:47
So the x component of resultant vector rx can be written as a x plus bx.
00:59
So a x can be written as a cos theta.
01:04
Which will be equal to 65 meter times cos 65 degree, which can be calculated as 27 .5 meter.
01:16
Similarly, the x component of vector b equal to b cos theta, which is equal to 80 meter times cos 155 degree.
01:29
Can be calculated as 58 .9 meter, sorry, minus 56 .6 meter.
01:42
So the x component of the resultant vector, rx, equal to 27 .5 meter plus minus 56 .6 meter can be calculated as minus 29 .1 meter.
02:00
Similarly, we need to...