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
Lelu [443]
2 years ago
10

A merry-go-round at a playground is a circular platform that is mounted parallel to the ground and can rotate about an axis that

is perpendicular to the platform at its center. The angular speed of the merry-go-round is constant, and a child at a distance of 1.4 m from the axis has a tangential speed of 2.2 m/s. What is the tangential speed of another child, who is located at a distance of 2.1 m from the axis?
(a) 1.5 m/s
(b) 3.3 m/s
(c) 2.2 m/s
(d) 5.0 m/s
(e) 0.98 m/s
Physics
1 answer:
hram777 [196]2 years ago
8 0

Answer:

V_2=3.3m/s

Explanation:

From the question we are told that:

Distance d_1=1.4m

Tangential speed V=2.2m/s

Distance 2 d_2=2.1m

Generally the equation for Angular velocity is mathematically given by

 w=\frac{v}{r}

Therefore

 \frac{v_1}{r_1}=\frac{v_2}{r_2}

 V_2=\frac{2.2*2.1}{1.4}

 V_2=3.3m/s

You might be interested in
Which organelle acts like the transportation or circulatory system of the cell?
REY [17]
The endoplasmic rectiulum... hope this helps!
7 0
3 years ago
Convert the arc length of 107869221.61 revolutions into rotation
Genrish500 [490]

Answer:

1 r = 6.283185 rad

677,762,308.31685 rad

Explanation:

8 0
3 years ago
When you attract every object in the universe with a force that is proportional to the mass of the objects and to the distance b
yuradex [85]

When you attract every object in the universe with a force that is proportional to the mass of the objects and to the distance between them, we are obeying Newton's law of universal gravitation.

<h3>Newton's law of universal gravitation</h3>

Newton's law of universal gravitation states that the force of attraction between two masses in the universe is directly proportional to the product of the masses and inversely proportional to the the square of the distance between them.

The mathematical interpretation of the above law is

  • F ∝Mm/r²

Removing the proportionality sign,

  • F = GMm/r².

Where:

  • F = Force of attraction
  • G = Gravitational constant
  • M = Bigger mass
  • m = Smaller mass
  • r = Distance between the masses.

From the above, When you attract every object in the universe with a force that is proportional to the mass of the objects and to the distance between them, we are obeying Newton's law of universal gravitation.

Learn more about Newton's law of universal gravitation here: brainly.com/question/9373839

#SPJ12

7 0
2 years ago
Brian has a medical condition called cone dystrophy, which is a disorder of the cone cells in the eye. What symptoms would you e
icang [17]

Answer:

  • Poor Color Vision
  • Sensitivity to Bright Light
  • Vision Loss
4 0
3 years ago
How would the number 13,900 be written using scientific notation?
Oksanka [162]

Answer:

um d. but I am guessing this ans

6 0
2 years ago
Other questions:
  • A 100g block is initially compressing a spring 5.0 cm. The spring launches the block 50cm horizontally along the ground with a f
    6·1 answer
  • Which of the following is an example of a rotating body?
    15·2 answers
  • Which compound is most likely a powerful and dangerous acid? H2S HBr Li2O LiBR
    13·2 answers
  • Are bases chemically the same as acids true or false
    15·1 answer
  • What are some ways that light can be controlled and what does it do to the light
    15·1 answer
  • A(n) 930 N crate is being pushed across a level floor by a force of 400 N at an angle of 20◦ above the horizontal. The coefficie
    6·1 answer
  • To calculate the _____ of a moving object, divide the displacement by the time interval in which the displacement occurred.
    8·2 answers
  • "Conclude how Newton's first, second, and third laws apply to you eating your breakfast." ​
    9·1 answer
  • The net force of two forces F1 and F2 acting in the same direction is 85N.And if is 15N when they are exerted in opposite direct
    12·2 answers
  • Which statement is the best explanation for the graph?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!