Answer to Question #174060 in Physics for Andu

Question

3. At points A, B and C of a rod, which are in a straight line, the parallel forces F1 = 40N, F2 = 30N and F3 = 30N operate in the same directions. Find the resultant of the three forces, knowing that AB = 28cm and AC = 60cm. Point B is located between A and C.

Answer 1

Since the forces are parallel and have the same direction, then

$F_{res}=F_1+F_2+F_3=40+30+30=100\ (N)$ . Answer