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Introductory Physics Homework Help
How Is Angular Acceleration Calculated for a Speeding Ferris Wheel?
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[QUOTE="EthanVandals, post: 5719863, member: 615005"] [h2]Homework Statement [/h2] If a Ferris Wheel of radius 25 meters is sped up from a linear speed of 2 meters per second to 3 meters per second, what is its angular acceleration if it takes 5 seconds to do this? How long will it take to complete a complete circle if it continues to accelerate at this rate? [h2]Homework Equations[/h2] C = 2(pi)r [h2]The Attempt at a Solution[/h2] I imagine I could get the second half of this problem fairly easily once I get the first one because I just need to find 50pi and apply the acceleration to it. We've done problems talking about the force of the bars holding the cars up, and problems about centripetal force, but my professor specifically stated the day before spring break that he forgot to teach us about this, so he doesn't expect anything miraculous. I would still like to understand however. I mapped out the concept on a graph (with the velocity on the y-axis and the time on the x axis. If you look at how long it took for the wheel to actually increase its speed by just 1 m/s, you get a slope of 1/5. But how do you translate this into this "angular acceleration" language? And without calculus, is there a way to actually calculate how long a full rotation will take, since the time where it's undergoing its "change" in velocity is unaccounted for at the moment? Thanks! [/QUOTE]
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How Is Angular Acceleration Calculated for a Speeding Ferris Wheel?
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