The magnitude of the resultant of two mutually perpendicular forces, F1 and F2 is 13N, if the magnitude of F1 is 5N, what is the magnitude of F2?
a
2.6N
b
6.0N
c
12.0N
d
18.0N
Explanation
Correct Option
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Uwaomachuks
2 years ago
r²= a²+b²
where r²=13
a²=5
b²= f2²
(13)²=5²+ (f2)²
f2²=13² - 5²
f2²= 169-25
f2²= 144
f2= √144
f2=12
