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weeeeeb [17]
3 years ago
7

While at the county fair, you decide to ride the Ferris wheel. Having eaten too many candy apples and elephant ears, you find th

e motion somewhat unpleasant. To take your mind off your stomach, you wonder about the motion of the ride. You estimate the radius of the big wheel to be 16 m , and you use your watch to find that each loop around takes 29 s. What is the speed?
Physics
1 answer:
Zepler [3.9K]3 years ago
5 0

Answer:

v=3.47m/s

Explanation:

The speed is by definition the distance traveled divided over the time it takes to travel that distance. In this case, this distance is the circumference of the wheel, so we have:

v=\frac{C}{t}=\frac{2\pi r}{t}

where we have written the circumference in terms of its radius.

For our values we then obtain the value:

v=\frac{2\pi r}{t}=\frac{2\pi (16m)}{(29s)}=3.47m/s

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Answer:

100 J, 225 J

Explanation:

The kinetic energy of an object is given by:

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where

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In this problem, the initial kinetic energy of the object is

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Then, the velocity is doubled, which means

v' = 2v

Therefore, the new kinetic energy will be

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Therefore, the new kinetic energy will be

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Answer:

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