Numerical on parallelogram law-converted PDF

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Numerical on parallelogram law 1. Two forces of 100N and 150N are acting simultaneously at a point. Find the resultant if the angle between them is 45⁰. 2. Two forces act at an angle of 120⁰. The bigger force is 40N and the resultant is perpendicular to the smaller one. Calculate the magnitude of the smaller force and resultant. 3. Find the magnitude of the two forces such that if they act at the right angle their resultant is √10 N. But if the same forces act at 600, their resultant is √13 N. 4. The sum of the two concurrent forces P and Q is 500 N and their resultant is 400N. If the resultant is perpendicular to "P", find P, Q, and the angle between P and Q. 5. The resultant of two forces P and Q is R. If Q is doubled, the new resultant is perpendicular to P. Prove that Q = R. 6. Find the angle between two equal forces P, when their resultant is equal to (i) P, (ii) P/2...