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
kompoz [17]
3 years ago
11

A sprinter has a mass of 80kg and a kinetic energy of 4000 j. What is the sprinter's speed

Physics
1 answer:
JulijaS [17]3 years ago
4 0
The formula of the kinetic energy is KE = 0.5*m*v^2.
Given m = 80 kg and KE = 4000 J,
4000 = 0.5*80*v^2
v^2 = 100
v = 10 m/s
You might be interested in
What is the weight of the body under the influence of a force of 10N reaches a speed of 1.5 m / s in 3s?
MariettaO [177]

Answer:

Explanation:

F=ma

F=10N

A=v-u upon t

=1.5-0 upon 3

=0.5m per second squared

Then do force divided by. Accelaration and multiply by gravity.

8 0
2 years ago
Which objects in space formed from the huge disk cisce and debris beyond the outer planets? Select two option
Dennis_Churaev [7]

Answer:

Comets

Explanation:

The Kuiper Belt is a collection of trans-Neptunian objects that consist of comets and other dwarf planets, including Pluto.

4 0
3 years ago
What is an example of a form of friction that impedes motion
Travka [436]

Answer:

to me I think is static

Explanation:

that is my own thinking

4 0
2 years ago
The solar nebula was a
tangare [24]

Solar Nebula

Our solar system began forming within a concentration of interstellar dust and hydrogen gas called a molecular cloud. The cloud contracted under its own gravity and our proto-Sun formed in the hot dense center. The remainder of the cloud formed a swirling disk called of the solar nebula.

4 0
3 years ago
What will happen to the Sun after it loses so much mass that its gravity
Natali5045456 [20]

Answer:

The answer is C

Explanation:

7 0
2 years ago
Read 2 more answers
Other questions:
  • If it takes 150 n of force to move a box 10 meters, what is the work done on the box?
    13·1 answer
  • A fancart of mass 0.8 kg initially has a velocity of < 0.8, 0, 0 > m/s. Then the fan is turned on, and the air exerts a co
    9·1 answer
  • Radiation is an example of a transverse wave t or f
    15·1 answer
  • When the sun heats up the surface of a puddle of water
    10·1 answer
  • What is the kinetic energy of a 200kg boat moving at 2.7m/s?
    8·2 answers
  • An electron is released from rest in a weak electric field given by E,--2.50 x 10.10 N/C j. After the electron has traveled a ve
    7·1 answer
  • A 4500-kg spaceship is in a circular orbit 190 km above the surface of Earth. It needs to be moved into a higher circular orbit
    13·1 answer
  • Mention five disadvantages of nonsustainable energy <br><br>​
    5·1 answer
  • An air-conditioning system's automatic controller might directly control the A. conversion of pneumatic energy to hydraulic sign
    13·1 answer
  • A diverging lens has a focal length of magnitude 21.8 cm.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!