March 28, 2017

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One end of a cord is fixed and a small 0.300 kg object is attached to the other end, where it swings in a section of a vertical circle of radius 2.50 m as shown in the figure below. When è = 15.0°, the speed of the object is 6.20 m/s. At this instant, find each of the following.

(a) the tension in the string
T = N

(b) the tangential and radial components of acceleration
ar = m/s2 inward
at = m/s2 downward tangent to the circle

(c) the total acceleration
atotal = m/s2 inward and below the cord at °

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