18.75 N
15.75 N
9.50 N
8.66 N
Correct answer is D
\(F_{1} = (5 N, 060°) = 5 \cos 60 i + 5 \sin 60 j = 2.5 i + \frac{5\sqrt{3}}{2}j\)
\(F_{2} = (10 N, 180°) = 10 \cos 180 i + 10 \sin 180 j = -10i\)
\(R = F_{1} + F_{2} = -7.5 i + \frac{5\sqrt{3}}{2}j\)
\(|R| = \sqrt{(-7.5)^{2} + (\frac{5\sqrt{3}}{2})^{2}}\)
= \(\sqrt{56.25 + 18.75} = \sqrt{75}\)
= 8.66 N
A binary operation ∆ is defined on the set of real numbers R, by x∆y = \(\sqrt{x+y - \frac{xy}{4...
From the diagram above, which of the following represents the vector V in component form? ...
Find the radius of the circle \(x^{2} + y^{2} - 8x - 2y + 1 = 0\)....
Evaluate \(\int_{1}^{2} \frac{4}{x^{3}} \mathrm {d} x\)...
Calculate the mean deviation of 1, 2, 3, 4, 5, 5, 6, 7, 8, 9. ...