Two forces of 5.0 N each are acting on a point mass. If the angle between the forces is 60^{\circ}, then the net force acting on the point mass has magnitude close to :
- A. 8.6 N ✓
- B. 4.3 N
- C. 5.0 N
- D. 6.7 N
Correct Answer: A. 8.6 N
Explanation
Using vector addition formula, R = \sqrt{5^2 + 5^2 + 2(5)(5)\cos(60^{\circ})} = \sqrt{75} \approx 8.66 N.
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