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
Sonja [21]
3 years ago
14

A cat dozes on a stationary merry-go-round, at a radius of 4.4 m from the center of the ride. The operator turns on the ride and

brings it up to its proper turning rate of one complete rotation every 7.7 s. What is the least coefficient of static friction between the cat and the merry-go-round that will allow the cat to stay in place, without sliding?
Physics
1 answer:
monitta3 years ago
4 0

Answer:

The coefficient of static friction is 0.29

Explanation:

Given that,

Radius of the merry-go-round, r = 4.4 m

The operator turns on the ride and brings it up to its proper turning rate of one complete rotation every 7.7 s.

We need to find the least coefficient of static friction between the cat and the merry-go-round that will allow the cat to stay in place, without sliding. For this the centripetal force is balanced by the frictional force.

\mu mg=\dfrac{mv^2}{r}

v is the speed of cat, v=\dfrac{2\pi r}{t}

\mu=\dfrac{4\pi^2r}{gt^2}\\\\\mu=\dfrac{4\pi^2\times 4.4}{9.8\times (7.7)^2}\\\\\mu=0.29

So, the least coefficient of static friction between the cat and the merry-go-round is 0.29.

You might be interested in
A 150 cm long string vibrates with 3 loops and its frequency is 80 Hz. What will be the wavelength and velocity of the waves?
Vlad1618 [11]

Answer:

since each loop is ewuvivalent to one half wave lenght . the length of the string is equal to two halves of a wavelength . put in the form of an equation in the same reasoning also

5 0
3 years ago
Give you point but please i need help in physcis
Anastasy [175]

Explanation:

Hi

Hi

Hi

Hi

BRAINILIEST PLEASE

7 0
2 years ago
Grasses, shrubs and trees are called producers because they make ______a. water_____b. carbon dioxide_____c. minerals_____d. foo
LekaFEV [45]
B?
Carbon Dioxid? Or is is c?














4 0
3 years ago
Read 2 more answers
Which would likely demagnetize a magnetized iron nail?
Delicious77 [7]
Dropping it on a hard surface. 
5 0
3 years ago
Read 2 more answers
To produce change in motion, a force must be a(n)
Bas_tet [7]
It'd be an unbalanced force
5 0
3 years ago
Other questions:
  • A square steel bar has a length of 9.7 ft and a 2.9 in by 2.9 in cross section and is subjected to axial tension. The final leng
    14·1 answer
  • Which of the following is INCORRECT??
    6·2 answers
  • There is a electric train traveling north, and the wind is blowing south. Which way is the steam going.
    9·1 answer
  • An astronaut landed on a far away planet that has a sea of water. To determine the gravitational acceleration on the planet's su
    5·1 answer
  • Mr. Hershman has purchased a farm that is in the shape of a rectangle. The dimensions of the piece of land are 4.3 km by 4.85 km
    14·1 answer
  • A 100 kg father and his 50 kg daughter stand on ice skates on a frozen pond. The daughter pushes on her father with a force of 5
    9·2 answers
  • Jnkmj jnmmjnkmjnkmjmsssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssc mmmmmmmmmmmmmmmmmmmm
    6·2 answers
  • A 60-kg woman runs up a staircase 15 m high (vertically) in 20 s.
    8·1 answer
  • If 100g of an isotope undergoes two half-lives, how many grams will be remaining?
    14·1 answer
  • A force of 5.25 newtons acts on an object of a mass 25.5 kilograms. How far is the object from the center of Earth? (The value o
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!