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Homework Help
Introductory Physics Homework Help
Angle of total acceleration of an object in circular motion
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[QUOTE="TheKShaugh, post: 5015515, member: 471924"] [h2]Homework Statement [/h2] A train slows down as it rounds a sharp horizontal turn, slowing from 90 km/h to 50 km/h in the 15 s that it takes to round the bend. The radius of the curve is 150 m. Compute the total acceleration at the moment the train speed reaches 50 km/h [h2]Homework Equations[/h2] a = sqrt[a_t^2 + a_r^2] [h2]The Attempt at a Solution[/h2] I have the solution for the total acceleration, I'm just wondering what I am supposed to give the angle relative to in these kinds of problems in general. The answer key gives the angle relative to the final velocity vector, is that a good reference point in general? [/QUOTE]
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Introductory Physics Homework Help
Angle of total acceleration of an object in circular motion
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