Question

Two vectors of 20 N each makes an angle with x axis is 30° and 150° then the resultant of these vector is
A.20N
B.40N
C.25N

Answer 1

Answer:

20

Explanation:

When 20 makes 30 and 10 with x-axis ,angle between the two vectors is 120

Using the equation

R=

$\sqrt{A^{2} + B{2}+ 2AB cos120 } \\=\sqrt{400+400+800*-0.5}\\=20$

Answer 2

Answer:

20

Explanation:

this answer is correct answer