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anonymous
 one year ago
If a wheel with a radius of 80 inches spins at a rate of 50 revolutions per minute, find the approximate linear velocity in miles per hour/ Use 3.14 for pi.
Thank you!
anonymous
 one year ago
If a wheel with a radius of 80 inches spins at a rate of 50 revolutions per minute, find the approximate linear velocity in miles per hour/ Use 3.14 for pi. Thank you!

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welshfella
 one year ago
Best ResponseYou've already chosen the best response.1first work out the circumference of the wheel can you do that?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1Circumference = 2 * 3.14 * radius

welshfella
 one year ago
Best ResponseYou've already chosen the best response.150 revolutions per minute = 50 * 502.4 ins per minute

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0that's how I get stuck! it's inches to miles and minutes to hours... I've tried it about 5 different ways before I posted. (It's multiple choice, so I know my answers are wrong when they aren't there!)

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1I'm not at my best today  i just said divide by 60 instead of multiply its 50*502.4 * 60 inches per hour then as there are 5280 * 12 inches ina mile mph = 50*502.4 * 60  5280*12

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ahhhh! Thanks found my error. I was forgetting the 50 back in the original formula. Early for me too, apparently.
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