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anonymous
 one year ago
An object moves in uniform circular motion at 25 m/s and takes 1.0 second to go a quarter circle. What is the radius of the circle ? helpppppp me
anonymous
 one year ago
An object moves in uniform circular motion at 25 m/s and takes 1.0 second to go a quarter circle. What is the radius of the circle ? helpppppp me

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0If it takes 1 second to go a quarter circle, it takes 4 seconds to go the whole circle. The circumference of the circle is the distance traveled, so that's \(2\pi r\). \[v=\frac{2\pi r}{T}\] where v = 25 m/s and T = 4.0 s Solve for r

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0heres the thing i know that it takes 4 second to go the whole circle and i know thats the formula but idk how to plug them i keep getting wrong numbers :(

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0put up what you have so I can see what you're doing

anonymous
 one year ago
Best ResponseYou've already chosen the best response.04x25 =100 for a whole circle

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0v is the velocity, so plug in 25 for v T is the time, that's 4 You should have this.\[25=\frac{ 2\pi r }{ 4 }\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0r is what you're solving for

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so multiply both sides by 4 to get \(100=2\pi r\)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Now divide both sides by \(2\pi\) and let me know what you get

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0see 0.06 is one of my answers but 157.07 is not and that what i had gotton before you come to help me

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Is that one of your answers?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I have 16 in my answers i just need know how you got it so i would do it myself next time please

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0multiply 2π first then divide 100 by that 100/(2π) = 100/6.28 = 15.9

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yeah it would be 16 to 2 sig figs

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0oh thats explains it yeah i put them all together in the calc and thats why it gave me 157 THANK you so MUCH
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