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Old Aug 24th 2014, 04:23 AM   #1
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Question Tangential vs Radial Acceleration

Hey guys, I have a question.

Say I have a block going down a circular path of radius 3m. At point A, the speed is 5m/s, and at point B, the speed is 4m/s. The distance between A and B is 30degrees. My question is, which one affects the speed of the block, the tangential acceleration (at), or the total acceleration (sqrt((at^2)+(ar^2)))? Thanks guys!
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Old Aug 24th 2014, 11:44 AM   #2
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Think about what affects speed - gravity, and perhaps friction. Do these act purely in the radial direction, or purely in the tangential, or both?
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