Question 2
Scalars and VectorsThe magnitude of the resultant of two mutually perpendicular forces, F1 and F2 is 13 N. If the magnitude of F1 is 5 N, what is the magnitude of F2?
- A.2.6 N
- B.8.0 N
- C.12.0 N
- D.18.0 N
Show the answer and explanation
Answer: C (12.0 N)
Explanation
For perpendicular forces 13² = 5² + F2², so F2 = √(169 − 25) = 12 N.