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Mashutka [201]
3 years ago
13

A wheel with radius 1 foot makes 1 revolution in 4 seconds. What is the linear velocity, in feet per second, of a point on the e

dge of the wheel?
Pi/4
Pi/2
4Pi
8Pi

Mathematics
2 answers:
Advocard [28]3 years ago
8 0

Answer:

B. π/2

Step-by-step explanation:

Took it on edge

3241004551 [841]3 years ago
7 0

Radius = r = 1 foot

Angular velocity = w = 1 revolutions in 4 seconds

So,

w = 0.25 revolutions per second

Since,

1 revolution = 2π radians

We can write the above equation as:

w = 0.25 x 2π radians per second = 0.5π radians per second

Linear Velocity = v = r w

Using the values, we can write:

v = 1 x 0.5π  

= 0.5 π

= π/2 feet per second

Therefore, the correct answer is option B

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Find the unit rate in feet per second <br> 300 yards over 1 minute
arlik [135]
In order to find the unit rate in ft / sec of 300 yards / min. We first have to elicit the conversion values for each unit of measurement, this will allows us identify how much will we multiply in order to get the goaled value.
Conversion values:
<span><span>1.    </span>1 yard = 3 feet</span>
<span><span>2.    </span>1 minute = 60 seconds</span>

Solution: <span><span>
1.    </span>300 yards x 3 feet/1 yard = 900 feet</span>
<span><span>2.    </span>1 minute x 60 seconds / 1 minute = 60 seconds</span>

Thus, 900ft/60sec



7 0
3 years ago
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AysviL [449]

Answer:

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Step-by-step explanation:

Think of the letter L

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Thats the best way I can explain it.

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3 years ago
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Which expression has a negative value?
7nadin3 [17]

Answer: The answer would be B

Step-by-step explanation:

I had a test like this so I kinda know wut the answer is a few weeks or so ago but u need to multiply -5 • 5 (which would be negative since it has one negative sign) then multiply -5 • -5 (since it has another negative it’s positive) then u just multiply the answers that u got from the times 5 u did -bonus if it’s 1 negatives it’s a negative but if it’s 2 negatives it’s a positive

4 0
3 years ago
If the graphed line goes up from left to right, then the slope is positive.
irga5000 [103]

Answer:

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Step-by-step explanation:

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7 0
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navik [9.2K]

Answer:

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Step-by-step explanation:

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3 years ago
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