11.6 N
11.7 N
11.8 N
11.9 N
Correct answer is B
F = F \cos \theta i + F \sin \theta j (Resolving F into its components)
F_{1} = (10 N, 090°) = 10 \cos 90 i + 10 \sin 90 j
= 10 j
F_{2} = (6 N, 180°) = 6 \cos 180 i + 6 \sin 180 j
= -6 i
R = - 6 i + 10 j
|R| = \sqrt{(-6)^{2} + (10)^{2}}
= \sqrt{136}
= 11.7 N
If α and β are roots of x^2 + mx - n = 0, where m and n are constants, form the ...
Find the equation of the tangent to the curve y = 4x^{2} - 12x + 7 at point (2, -1)....
If \frac{1}{5^{-y}} = 25(5^{4-2y}), find the value of y....
Given that f '(x) = 3x^{2} - 6x + 1 and f(3) = 5, find f(x)....
Age in years 10 - 14 15 - 19 20 - 24 25 - 29 30 - 34 Frequency 6 8 14 10 12 ...
A binary operation, \Delta, is defined on the set of real numbers by a \Delta b = a + b + 4....
Find \lim\limits_{x \to 3} \frac{2x^{2} + x - 21}{x - 3}....