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
Nikitich [7]
3 years ago
14

A pulley has an initial angular speed of 12.5 rad/s and a constant angular acceleration of 3.41 rad/s2. Through what angle does

the pulley turn in 5.26 s?
Physics
1 answer:
Novosadov [1.4K]3 years ago
4 0

Answer:

Angle turn pulley is 113 rad

Explanation:

given data

angular speed w = 12.5 rad/s

angular acceleration a 3.41 rad/s²

time t = 5.26 s

to find out

what angle does the pulley turn

solution

we get here angle by this equation that is here

angle  turn = w × t + 0.5 × a × t²     ......................1

put here value we get

angle  turn = w × t + 0.5 × a × t²

angle  turn = 12.5 × 5.26 + 0.5 × 3.41 × 5.26²

Angle turn =  65.75 + 47.17

Angle turn = 112.92 rad = 113 rad

You might be interested in
2. An athlete of average size is hanging from the end of a 20 m long rope, which has a mass of 4 kg and is attached to a hook in
a_sh-v [17]

Answer:

  t = 0.319 s

Explanation:

With the sudden movement of the athlete a pulse is formed that takes time to move along the rope, the speed of the rope is given by

             v = √T/λ

Linear density is

           λ = m / L

           λ = 4/20

           λ = 0.2 kg / m

The tension in the rope is equal to the athlete's weight, suppose it has a mass of m = 80 kg

           T = W = mg

           T = 80 9.8

           T = 784 N

The pulse rate is

          v = √(784 / 0.2)

          v = 62.6 m / s

The time it takes to reach the hook can be searched with kinematics

          v = x / t

          t = x / v

          t = 20 / 62.6

          t = 0.319 s

7 0
3 years ago
A wave has a wavelength of 7 mm and a frequency of 16 hertz. What is its speed?
Leokris [45]
 0.000112m/s hope this helps


3 0
3 years ago
Read 2 more answers
Help me with this please!
alexgriva [62]
Prototype
Chemistry
Technology
Troubleshooting
Hypothesis?
Observing
Variable
Hypothesis?
Engineer
System
3 0
3 years ago
A device called a railgun uses the magnetic force on currents to launch projectiles at very high speeds. an idealized model of a
Sedbober [7]
I cant SCIENCE SRY about that
3 0
2 years ago
Read 2 more answers
Comment l'azote entre dans l'atmosphère
Kruka [31]

Answer:

shark puppet

Explanation:

8 0
3 years ago
Other questions:
  • Can someone help me plz<br>it's a glass bell jar and to vacuum pump
    13·1 answer
  • A point charge of 4.0 µC is placed at a distance of 0.10 m from a hard rubber rod with an electric field of 1.0 × 103 . What is
    11·2 answers
  • What are the similarities and differences between light and sound waves?
    15·2 answers
  • Looking down on a Northern Hemisphere extratropical cyclone, surface winds blow ________ about the center. a.counterclockwise an
    11·1 answer
  • According to the principle of segregation, _____.
    15·1 answer
  • When the flashlight is in the air and the refracted ray enters the water, how does the angle of refraction compare with the angl
    8·1 answer
  • What would happen if the light bulb in the middle were removed?
    7·2 answers
  • 500 J of work is used to decrease the angular velocity of a disk from 65 rad/s to 52 rad/s.What is the rotational inertia of the
    15·1 answer
  • A room has a heater on one side and
    7·1 answer
  • The occupants of a vehicle not wearing a seat belt, traveling at a speed of 50 mph and colliding head-on with another vehicle, w
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!