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
amid [387]
4 years ago
13

A turntable A is built into a stage for use in a theatrical production. It is observed during a rehearsal that a trunk B starts

to slide on the turntable 15 s after the turntable begins to rotate. Knowing that the trunk undergoes a constant tangential acceleration of 0.3 m/s^2 , determine the coefficient of static friction between the trunk and the turntable
Physics
1 answer:
Helga [31]4 years ago
6 0

Answer:

μ = 0.03

Explanation:

In order for the trunk not to slide the frictional force between the turntable and the trunk must be equal to the unbalanced force applied on the trunk by the motion of the turntable. Therefore,

Unbalanced Force = Frictional Force

but,

Unbalanced Force = ma (Newton's second law of motion)

Frictional Force = μN = μW = μmg

Therefore,

ma = μmg

a = μg

μ = a/g

where,

μ = coefficient of static friction between the trunk and the turntable = ?

a = tangential acceleration of trunk = 0.3 m/s²

g = 9.8 m/s²

Therefore,

μ = (0.3 m/s²)/(9.8 m/s²)

<u>μ = 0.03</u>

You might be interested in
Which of the following statements is true?
hram777 [196]

All the radiation from stars is the result of nuclear fusion in their cores.

4 0
3 years ago
Read 2 more answers
HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!pls
barxatty [35]
I think this is the solution:

1: U-1, F,-4
2: Na-6, Mo-1, O-4
3: Bi-1, O-1, C-1, I-1
4: In-9, N-1
5: N-2, H-4, S-1, C-1
6: Ge- 15, N-4
7: N-1, H-4, C-1, I-1, O-3
8: H-7, F-1
9: N-1, O-5, H-1, S-1
10: H-8
11: Nb-1, O-1, C-1, I-3
12: C-3, F-3, S-1, O-3, H-1
13: Ag-1, C-1, N-1, O-1
14: Pb-6, H-1, As-1, O-4
5 0
2 years ago
Ted Clubber Lang. A hook in boxing primarily involves horizontal flexion of the shoulder while maintaining a constant angle at t
il63 [147K]

Answer:

15 m/s or 1500 cm/s

Explanation:

Given that

Speed of the shoulder, v(h) = 75 cm/s = 0.75 m/s

Distance moved during the hook, d(h) = 5 cm = 0.05 m

Distance moved by the fist, d(f) = 100 cm = 1 m

Average speed of the fist during the hook, v(f) = ? cm/s = m/s

This can be solved by a very simple relation.

d(f) / d(h) = v(f) / v(h)

v(f) = [d(f) * v(h)] / d(h)

v(f) = (1 * 0.75) / 0.05

v(f) = 0.75 / 0.05

v(f) = 15 m/s

Therefore, the average speed of the fist during the hook is 15 m/s or 1500 cm/s

6 0
3 years ago
Mickey had three substances. He hit each of them with a hammer. A red
Verizon [17]

Answer:

A & D

Explanation:

:p

6 0
3 years ago
A car veers off course and runs straight into a brick wall. This is an example
ValentinkaMS [17]
Short time large force
4 0
3 years ago
Other questions:
  • 25 POINTS ------------------ (usatestprep)
    7·1 answer
  • Patty climbs a tree. While sitting on a branch, she drops a leaf and an acorn at the same time. What would happen?
    8·1 answer
  • Lance armstrong biking over 40 miles in one day would be considered muscular strength. true or false
    9·1 answer
  • HURRY PLZ
    9·2 answers
  • Whose data did Kepler use to construct the laws of planetary motion?
    10·1 answer
  • 5. It is the year 2085, and the world population has grown at an alarming rate. As a space explorer, you have been sent on a ter
    5·2 answers
  • List some benefits of Cardiovascular exercise:
    10·2 answers
  • Why is photoelectric effect important?
    12·1 answer
  • Vin Diesel jumps out of a plane. Gravity pulls on him with 184N of force and his parachute pushes him up with 82 N of force.
    8·1 answer
  • 3. Sodium-24 has a half-life of 15 hours. If a sample of sodium-24 has an
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!