Physics: Angular Motion and Acceleration

One end of a cord is fixed and a small 0.250-kg object is attached to the other end, where it swings in a section of a vertical circle of radius 3.00 m, as shown in the figure attached. When θ = 23.0°, the speed of the object is 7.50 m/s.

(a) At this instant, find the magnitude of the tension in the string. (b) At this instant, find the tangential and radial components of acceleration.(c) At this instant, find the total acceleration. [inward and below the cord at _____ degrees] (d) Is your answer changed if the object is swinging down toward its lowest point instead of swinging up? image.jpg

 

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