Forces 50N and 80N act on a body as shown in the diagram....
Forces 50N and 80N act on a body as shown in the diagram. Find, correct to the nearest whole number, the horizontal component of the resultant force.
13N
43N
57N
95N
Correct answer is A
Given a force F, the horizontal component = Fcosθ
R = −50cos30+80cos45
= −50(√32)+80(√22)
= −25√3+40√2=−43.30+56.67
= 13.37N≊
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