A vector A has x-component of 12 m and y-component 5 m. What is the magnitude of

Question

A vector A has x-component of 12 m and y-component 5 m. What is the magnitude of vector A? Pairs of forces of equal magnitude act on identical cylinders as shown in the figures. In which example is the cylinder in translational and rotational equilibrium? You are going to change the angle phi2 of applied force on the right side of the Equal Arm Balance keeping the holding force constant and the Balance in equilibrium. If this angle decreases from 90 to 0 degrees, how will the applied force value change?

Explanation / Answer

1. sqrt (12^2 + 5^2) = 13. 2. Only forces tangent to the cylinder will cause acceleration. In A, the two tangent forces combined cause clockwise rotational acceleration. In C, one tangent forces causes counterclockwise rotation. D, one tangent force causes clockwise rotation. in E, One force causes counterclockwise rotational acceleration. Only in B do no rotational forces act on the cylinder. Hope this helps!

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