Question

Two forces, each numerically equal to 5 N, are acting as shown in the figure. Then the resultant is-

• A. 2.5 N
• B. 5 N
• C. $5\sqrt{3}$N
• D. 10 N

Answer 1

Answer: (B)

5 N

Answer 2

2 × 5 cos $\left( \frac{120º}{2} \right)$ = 2 × 5 cos60⁰ = 5 N