answer.
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
AveGali
4 months ago
13

4 A wheel starts from rest and has an angular acceleration of 4.0 rad/s2. When it has made 10 rev determine its angular velocity

.]
Physics
1 answer:
Yuliya22 [3.3K]4 months ago
8 0

Answer:

w_f= 22.41 rad/s

Explanation:

To begin with, we have:

a = 4 rad/s²

S = 10 rev = 62.83 rad

Now we understand that:

w_f^2-w_i^2=2aS

where w_f denotes the final angular velocity, w_i the initial angular velocity, a represents angular acceleration, and S symbolizes radians.

<pplugging in="" the="" values="" we="" obtain:="">

w_f^2-(0)^2=2(4)(62.83)

Ultimately, solving for w_f gives:

w_f= 22.41 rad/s

</pplugging>
You might be interested in
Two racecars are driving at constant speeds around a circular track. Both cars are the same distance away from the center of the
Yuliya22 [3333]

Response:

The acceleration of car 2 is four times that of car 1.

Rationale:

Centripetal acceleration occurs when an object travels in a circular route. It can be expressed as:

a=\dfrac{v^2}{r}

In this scenario, two race cars are moving at consistent speeds around a circular course. Both automobiles are located at an equal distance from the center, but car 2 is operating at twice the speed of car 1.

Thus,

\dfrac{a_1}{a_2}=\dfrac{v_1^2}{v_2^2}

1 and 2 represent the first and second cars, respectively.

v_2=2v_1

Consequently,

\dfrac{a_1}{a_2}=\dfrac{v_1^2}{(2v_1)^2}\\\\\dfrac{a_1}{a_2}=\dfrac{v_1^2}{4v_1^2}\\\\\dfrac{a_1}{a_2}=\dfrac{1}{4}\\\\a_2=4\times a_1

Therefore, car 2's acceleration is four times that of car 1.

4 0
3 months ago
What happens when you decrease the thrust on your scooter? A. You stop B. Nothing happens C. You fall over D. You speed up Reset
Yuliya22 [3333]

Response:

D. You accelerate

Clarification:

Hope this is helpful

4 0
2 months ago
A horse does 860 j of work in 420 seconds while pulling a wagon. what is the power output of the horse? round your answer to the
Keith_Richards [3271]
the answer is 2w
6 0
2 months ago
Read 2 more answers
Other questions:
  • To avoid an accident, a driver steps on the brakes to stop a 1000-kg car traveling at 65km/h. if the braking distance is 35 m, h
    7·1 answer
  • "a certain sprinkler releases water at the rate of 150 liters per hour. if the sprinkler operated for 80 minutes, how many liter
    14·1 answer
  • Derive an algebraic equation for the vertical force that the bench exerts on the book at the lowest point of the circular path i
    10·1 answer
  • How are uniform circular motion maps the same as linear motion maps? Check all that apply.
    12·2 answers
  • A 32-kg child decides to make a raft out of empty 1.0-L soda bottles and duct tape. Neglecting the mass of the duct tape and pla
    15·1 answer
  • Weddell seals make holes in sea ice so that they can swim down to forage on the ocean floor below. Measurements for one seal sho
    11·1 answer
  • A baggage handler throws a 15 kg suitcase along the floor of an airplane luggage compartment with a speed of 1.2 m/s. The suitca
    5·1 answer
  • Three cars are tested in a 16 m/s frontal crash. The results of the crash tests are shown below, with data indicating how much t
    10·1 answer
  • A 60-μC charge is held fixed at the origin and a −20-μC charge is held fixed on the x axis at a point x = 1.0 m. If a 10-μC char
    14·1 answer
  • A 35 g steel ball is held by a ceiling-mounted electromagnet 3.8 m above the floor. A compressed-air cannon sits on the floor, 4
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!