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ycow [4]
3 years ago
12

You are given that a wheel has a radius of 2 feet and a spin rate of 10 revolutions per minute. Describe how you would determine

the linear velocity, in feet per minute, of a point on the edge of the wheel. State the linear velocity of the wheel, and explain why your answer is reasonable.
Mathematics
1 answer:
ss7ja [257]3 years ago
6 0

Answer:

About 126 ft/min

Step-by-step explanation:

We know r = 2 feet, and that the wheel has an angular speed of 10 rpms, or 10 revolutions per minute. Our goal is to get the speed in ft/sec.

10 rev            1 minute             2π radians            2 feet

-----------  ×    ----------------   ×    ------------------    ×   ------------

1 minute       60 seconds         1 revolution           1 radian

= 10 * 2π * 2 = 126 ft/minute

The answer is reasonable. Another, simple approach to this would be using the formula 2π * r * rpm. If so, 2π * 2 * 10 which would be 126 ft/minute.

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Answer: Yes, it is 2\sqrt{3}

Step-by-step explanation:

To simplify square roots, you can factor the number inside the square root into its lowest common denominators.

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Any value that appears twice can be "taken out" of the square root and moved to the left of it:

2\sqrt{3},

What you are doing is essentially taking the square root of 4 and the square root of 3. Because the square root of 4 can be simplified, and the square root of 3 cannot, this is the most simplified version of the expression we can reach.

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3 years ago
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3 years ago
Which of the following systems of linear inequalities is represented by the
algol [13]

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Step-by-step explanation:

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ioda

Answer:The new cost per person= $19 when there are 12 people

Step-by-step explanation:

Step 1

Let Number of people be rep as N

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3 years ago
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