1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
harkovskaia [24]
3 years ago
11

An object is traveling around a circle with a radius of 10 cm. If in 20 seconds a central angle of 1/3 radian is swept out, what

is the linear speed of the object?
I think I've set my formula up right (v=Δ20/Δ1/3 radian), but I don't know what to do with the Δ thing. Once I know how to do that I should be able to like, actually figure it out.
Mathematics
1 answer:
arsen [322]3 years ago
3 0
Usually, Δ stands for a difference: if you have two quantities a₂ and a₁, their difference a₂-a₁ can be shortened as Δa.

This said, your formula is not set up correctly: the linear speed can be found with the formula:
v = ω·r
where r is the radius and <span>ω is the angular frequency, which is given by:
</span>ω = Δα / Δt
Substituting this into the one above, you find the correct formula:
<span>v = (Δα / Δt) · r

The problem gives you directly </span>Δα, which is 1/3 rad, because does not say at what angle the point started moving and at what angle it stopped.
Similarly, for the time you have Δt, which is 20 s.

Therefore, plugging in the numbers you get:
v = (Δα / Δt) <span>· r = (1/3 </span>÷ 20) × 10 = 1/6 = 0.167 cm/s




You might be interested in
Using your own words, create a word problem around the given problem. Then solve it
lana [24]

Answer:

Philip got $300 from his relatives, he puts 65% of the money he got into the bank. How much money did Philip put in the bank? $195

5 0
3 years ago
Can someone help my do step by step 579 divided by 3
kotegsom [21]

Answer: 193

Step-by-step explanation: an image is included to show you the steps.

8 0
2 years ago
What is the difference between 9 thirty sevens and 8 thirty sevens
mojhsa [17]
From what I think of this question, i think of 9x37 and 8x37 OR 9/37 and 8/37. either way 8x37=296 9x37=333 9/37=0.2432 8/37=0.2162
6 0
3 years ago
Read 2 more answers
Suppose that 13 inches of wire costs 78 cents.
Fed [463]

Answer:

I believe that the answer is 6 inches

3 0
2 years ago
Jeans are on sale for $16 per pair. How much will 4 pairs of jeans cost?
yKpoI14uk [10]

Answer:

4 pairs cost $64

Step-by-step explanation:

16*4=64$

5 0
3 years ago
Other questions:
  • A four-person committee is chosen from a group of eight boys and six girls.
    13·2 answers
  • A group of mountain climbers begin an expedition with 270 pounds of food. They plan to eat a total of 15 pounds per day. Write a
    15·2 answers
  • What is 1 1/3 divided by 3/5
    13·2 answers
  • Which student evaluated the power correctly?
    9·2 answers
  • Joe solved this linear system correctly.
    10·1 answer
  • Elise does not like sorbet, so she omits that ingredient and adds 5 percent of each of the other ingredients. How many cups of p
    11·1 answer
  • What is the answer??
    7·2 answers
  • Find the equation of the line parallel to y=-11-5, that passes through the point
    8·2 answers
  • What fraction is equivalent to a repeating decimal
    12·1 answer
  • What is the difference between an expression and an equation? Provide an example of each.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!