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
ahrayia [7]
1 year ago
11

brainly a child on a swing set swings back and forth with a period of 3.3 s and an amplitude of 25°. what is the maximum speed o

f the child as she swings?
Physics
1 answer:
beks73 [17]1 year ago
6 0

Maximum speed of the child as she swings is  2.23 m/s.

<h3>Step by Step Calculation:</h3>

T=3.3 s is the oscillation's time period.

The swing's greatest angle is 25° (max).

The swing's bottom will have the following kinetic energy:

k=12mv2...........(1)

The mass in this situation is m, and the speed is v.

The potential energy change is expressed as,

∆U=mgL1-cosθmax...............(2)

Here, L is a string's length and g is the acceleration caused by gravity. L is given as,

L=gT24π2

Combine equation (1) with (2)

12mv2=mgL1-cos, maxv=2g, maxv=gT24, maxv=g2T22, maxv=9.8 m/s

22.33 m/s, 22.31 s22.31 cos25°

Therefore, the child's top speed is 2.23 m/s.

<h3>What is Oscillation ?</h3>
  • The process of any quantity or measure fluctuating repeatedly about its equilibrium value in time is known as oscillation.
  • A periodic change in a substance's value between two values or around its central value is another way to define oscillation.

To learn more about Oscillation refer to:

brainly.com/question/28312746

#SPJ1

You might be interested in
Scientist have measured that the vibrations of an earthquake travel faster through solid rocks in the Earth and slower in the li
GarryVolchara [31]
A. The particles are packed more tightly in materials with more density which causes the vibrations to bounce of the partials more rapidly which makes them go faster
6 0
3 years ago
In a collision, a 25.0 kg mass moving at 3.0 m/s transfers all of its momentum to a 5.0 kg mass.
nadezda [96]

Answer:

Explanation:

The momentum of the 25 kg mass is

p=mv

p=25kg*3m/s= 75kg*m/s

If this whole momentum of the object is transferred to the 5.0 kg object then according to the law of conservation of momentum, the momentum of the 25.0 kg object must be transferred to the 5.0 kg object:

75kg*m/s = 5.0kg*v

v=\dfrac{75}{5}

\boxed{v=15m/s}

8 0
3 years ago
A research vessel is mapping the bottom of the ocean using sonar. It emits a short sound pulse called "ping" downward. The frequ
Elena L [17]

Answer:

The ocean is 6485.6m deep when measured from the vessel

Explanation:

v=1474m/s

t=8.88s

let d represent distance from the vessel to the ocean bottom.

an echo travels a distance equivalent to 2d, that is to and fro after it reflects from the obstacle.

velocity=\frac{distance}{time}\\ v=\frac{2d}{t} \\vt=2d\\d=\frac{vt}{2}

d=\frac{1474*8.8}{2}

d= 6485.6m

7 0
2 years ago
Light travels at 300,000,000 m/s. This is an example
mafiozo [28]

Answer:

ook soooooo

Explanation:

3 0
2 years ago
Which of the following is a pair of vector quantities?
hammer [34]

Answer:

velocity and displacement answer

Explanation:

thanks me

6 0
3 years ago
Read 2 more answers
Other questions:
  • An unmarked police car traveling a constant 85 km/h is passed by a speeder. Precisely 2.00 s after the speeder passes, the polic
    7·1 answer
  • Hi, could someone please answer the first 3 questions of each planet
    15·1 answer
  • A perfectly conductive plate is placed in the y z-plane. An electromagnetic wave with electric field is incident on the conducto
    8·1 answer
  • In a thundercloud there may be an electric charge of 41 C near the top of the cloud and −41 C near the bottom of the cloud. If t
    12·1 answer
  • Which is developed during the process of technology design
    5·1 answer
  • Compare convergent plate boundaries that have the same density to convergent plate boundaries with different densities.
    7·1 answer
  • The Temperatureslider controls the heat of the metal filamentinside the light. Scientists use the Kelvin scaleto measure the tem
    9·1 answer
  • a planes average speed between two cities is 600 km/hr. if he takes 2.5 hrs. how far does the plane fly
    9·1 answer
  • If you travel 450 meters in 40 seconds, what is your average speed in meters per
    12·1 answer
  • Some fish have a density slightly less than that of water and must exert a force (swim) to stay submerged. What force must an 85
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!