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
gavmur [86]
2 years ago
11

Date Page 2. A bicycle of 15kg is moving with the velocity of 10m/s. calculate the kinetic energy. ​

Physics
1 answer:
QveST [7]2 years ago
3 0

Answer:

\boxed {\boxed {\sf 750 \ J}}

Explanation:

Kinetic energy is the energy an object possesses due to motion. It is calculated using the following formula.

E_k= \frac{1}{2} mv^2

In this formula, <em>m</em> is the mass and <em>v </em> is the velocity.

The bicycle has a mass of 15 kilograms and a velocity of 10 meters per second.

  • m= 15 kg
  • v= 10 m/s

Substitute the values into the formula.

E_k= \frac {1}{2} (15 \ kg)(10 \ m/s)^2

Solve the exponent.

  • (10 m/s)²= 10 m/s * 10 m/s = 100 m²/s²

E_k= \frac{1}{2} (15 \ kg)( 100 \ m^2/s^2)

Multiply all the values together.

E_k= \frac{1}{2} ( 1500 \ kg*m^2/s^2)

E_k= 750 \ kg*m^2/s^2

1 kilogram meter squared per second squared is equal to 1 Joule. Therefore, our answer of 750 kg*m²/s² is equal to 750 J.

E_k= { 750 \ J

The kinetic energy of the bicycle is <u>750 Joules.</u>

You might be interested in
The bob of a pendulum swings back and forth with a total mechanical energy of 300 J. What is the kinetic energy of the bob when
zhenek [66]

at the lowest point in the trajector, the kinetic energy of the bob is 300 J.

Explanation:

The total mechanical energy of the bob at any point of its motion is given by

E=KE+PE

Where

KE=\frac{1}{2}mv^2 is the kinetic energy, where

m is the mass of the bob

v is its speed

PE=mgh is the gravitational potential energy, where

g is the acceleration of gravity

h is the height of the bob, measured with respect to the lowest point of the trajector

In absence of friction, the total mechanical energy E remains constant. So we have:

- When the bob swings upward, the PE increases (because h increases) and the KE decreases (so the speed decreases). At the highest point in the trajector, the speed of the bob is zero (v=0), so its KE is also zero and all the mechanical energy is potential energy: U = 300 J

- When the bob swings downward, the PE decreases (because h decreases) and the KE increases (so the speed increases). At the lowest point in the trajectory, the height has become zero (h=0), so the PE is zero and all the mechanical energy is kinetic energy: KE = 300 J

Therefore, at the lowest point in the trajector, the kinetic energy of the bob is 300 J.

Learn more about kinetic energy:

brainly.com/question/6536722

#LearnwithBrainly

4 0
3 years ago
When balancing an equation, you can
attashe74 [19]
D. write down the coefficients
7 0
3 years ago
To view an enlarged upright image of an object through a simple magnifier, where must the object be located?.
Andre45 [30]

Answer:within the focal length of the lens, provided the focal length is shorter than the near point distance.

Explanation:Hope it helps

6 0
2 years ago
Which of the following statements about line graphs is true?
Vladimir79 [104]
What r the answer choices? I'm
7 0
3 years ago
Read 2 more answers
Name the regions of a electromagnetic spectrum from the shortest wavelength to the longest wavelength
kaheart [24]

Answer:

From shortest wavelength to longest wavelength:

Gamma Rays

X-Rays

Ultraviolet

Visible Light

Infrared waves

Microwaves

Radio Waves

Explanation:

5 0
3 years ago
Other questions:
  • Which of these accurately describes the products of a reaction?
    14·2 answers
  • How can you model electromagnetic wave behavior?​
    5·2 answers
  • A car travels 90 km/h. How long does it take for the car to travel
    9·1 answer
  • 1. a) If a particle's position is given by LaTeX: x\:=\:4-12t\:+\:3t^2x = 4 − 12 t + 3 t 2(where t is in seconds and x is in met
    12·2 answers
  • The amount of light lost within a fiber-optic system is known as
    13·1 answer
  • Pls give motivation, a paragraph pls! I'll give brainliest to whoever's is the biggest and best! I'll give 50 points, it is for
    13·1 answer
  • What is one standard kilogramun si system<br><br><br><br><br>​
    13·2 answers
  • Sarah drives at a constant speed of 15 m/s around a circular horizontal curve of diameter 60 m. What are the magnitude and direc
    5·1 answer
  • a log splitter puts out 1 100W of power for every 1500 W put into it. the efficiency of the machine is what
    11·2 answers
  • A proton with charge 1.601019 As is moving at 2.4105 m/s through a magnetic field of 4.5 T. You want to find the force on the pr
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!