The resultant of two forces 12N and 5N is 13N. What is the angle between the two forces?
-
A.
0o -
B.
45o -
C.
90o -
D.
180o
Correct Answer: Option C
Explanation
R2 – P2 + Q2 = 122 + 52
= 144 + 25 = 169
∴R = √169 = 13N
∴ angle between the forces is 90o