7 items are filed under this topic.
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A rolling wheel |
2009-03-29 |
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From Jules:
How far does a wheel of radius 2 feet roll along level ground in making
300 revolutions?
Answered by Penny Nom. |
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The speed of a tire in revolutions per minute |
2009-03-28 |
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From Jules:
Suppose that a tire on a car has an outer diameter of 2,5 feet. How many
revolutions per minute does that tire make when the car is travelling 60
miles per hour? (hint:first find the angular velocity in radians per minute.)
Answered by Harley Weston. |
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I need to rebuild a wagon wheel |
2007-10-26 |
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From Pat:
I need to rebuild a wagon wheel, the metal wheel rim is 41" diameter, inside the rim is a one and a half inch by one and a half inch wood wheel.
I thought I would glue up a hexagon from a 2x6 or 2x8 piece of wood and then draw and cut out the 41" diameter wood circle.
? what would work better the 2x6 or the 2x8 and what is the lenghth of the cuts needed in order to give me the 41' diameter I need.
Answered by Harley Weston. |
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Rotational energy needs |
2007-08-29 |
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From will:
how much energy in KW do i need to start and subsequently rotate a 4 ton fly wheel of 1 metre radius at 12 rpm?
Answered by Stephen La Rocque. |
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What angle does the tire turn in 60s? |
2007-06-04 |
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From San:
An automobile, travelling at 80km/h, is towing a trailer. The wheels of the trailer
are 40cm in diameter. Through what angle does the tire turn in 60second?
Answered by Stephen La Rocque. |
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Trig - Ferris wheel |
2007-02-13 |
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From Anthony:
A ferris wheel is 250 feet in diameter and revolves every 40 seconds when in motion. Your step up to seat on the wheel at the bottom 2 feet above the ground so you are sitting 4 feet above the ground to start. Derive the formula for the height of your seat at time (t). If I go three times around, how long is the ride in ditance traveled?
Answered by Stephen La Rocque and Penny Nom. |
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Spins of a roulette wheel |
2001-03-02 |
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From Bob:
Here's a problem I'm working on myself.....If you look at six consecutive spins of a roulette wheel, how many combinations of red and black are possible? I.E. BRRBRB, BBBBBR, BBRRRB......ETC.....
Answered by Claude Tardif. |
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