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
If the mass of material is 44 grams and the volume of the material is 8cm^3 what would the density of the material be?
Alenkasestr [34]

Density = mass ÷ volume

D= 44g ÷ 8 cm^3

D = 5,5 (round it) 6 g/cm^3

6 0
3 years ago
The motion of a free falling body is an example of __________ motion​
swat32

Answer:

accelerated

Explanation:

The motion of the body where the acceleration is constant is known as uniformly accelerated motion. The value of the acceleration does not change with the function of time.

4 0
3 years ago
Read 2 more answers
What is the maximum number of primary partitions that gpt supports?
Vikki [24]
It supports 128 primary partitions.
4 0
3 years ago
Explain why the top of the loop cannot be the same height as (or higher than) the top of the first hill. Assume the roller coast
Ivahew [28]

Answer:

By conservation of energy, it can climb up to a height equal to that it went down before. However, due to the friction in the machines, the total mechanical energy of the roller coaster will decrease. As a result, the first "hill" of many roller coasters are the highest, but the followings will have decreasing heights.

Explanation:

7 0
3 years ago
Read 2 more answers
A 600 kg car is at test and then accelerated to 5m/s , what is its original kinetic energy
ycow [4]

Answer:

0 J

Explanation:

Kinetic energy is defined as:

KE = 1/2 m v²

where m is mass and v is velocity.

The car starts at rest, so it has zero velocity.  Therefore, its initial kinetic energy is 0 J.

3 0
3 years ago
Other questions:
  • What are the two opposite sides of a magnet called?
    14·2 answers
  • The milky way galaxy is most likely an example of which type of galaxy?
    5·2 answers
  • PLEASE HELP!!!
    8·1 answer
  • Rasheed runs a football 10 meters east, turns and runs the football 6 meters west. If his velocity during this run is found to b
    9·2 answers
  • A string has a mass of 12.3 g. The string is stretched with a force of 8.67 N, giving it a length of 1.81 m. Then, the string vi
    9·1 answer
  • The actual depth of a shallow pool 1.00 m deep is not the same as the apparent depth seen when you look straight down at the poo
    13·1 answer
  • What is the main difference between analog anddigital technology?a. Digital technology reproduces sound more faithfullythan anal
    13·1 answer
  • Which statement describes how work and power are similar?
    7·1 answer
  • An astronaut is planning a trip to a newly-discovered planet. According to 2 points
    11·1 answer
  • What is the net force in this image?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!