When two forces are in the same direction, the resultant force is a, and when the two forces are in the opposite direction, the resultant force is B. when the two forces are vertical, the resultant force is? Write down every step as long as you know why

When two forces are in the same direction, the resultant force is a, and when the two forces are in the opposite direction, the resultant force is B. when the two forces are vertical, the resultant force is? Write down every step as long as you know why


F 1 + F 2 = a, f 1-f 2 = B. F 1 = (a + b) / 2, F 2 = (a-b) / 2 are obtained
In vertical case, the square of F combination = the square of F 1 + the square of F 2. So f combination is (a 2 + B 2) / 2 radical

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