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July 28, 2014

Homework Help: Physics

Posted by Cody on Thursday, September 22, 2011 at 3:40pm.

One end of a cord is fixed and a small 0.470-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 θ = 21.0, the speed of the object is 4.70 m/s. At this instant, find each of the following.

(a) the tension in the string

(b) the tangential and radial components of acceleration

(c) the total acceleration

I have the tension and it is 8.48N and I have the radial component of acceleration. I can't figure out how to get the tangential component of acceleration.

Please help and thank you.

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