Physics · Mechanics
When two equal forces F act at an angle θ, the resultant force is given by which of the following expressions?
- 1R = 2F cos(θ/2)✓
- 2R = F1 - F2
- 3R = F1 + F2
- 4R = 2F sin(θ/2)
Correct answer
R = 2F cos(θ/2)
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