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
zepelin [54]
2 years ago
8

A football coach sits on a sled while two of his players build their strength by dragging the sled across the field with ropes.

The friction fource on the sled is 1000N and the angle between the two ropes is 20°. How hard must each player pull to drag the coach at a steady 2.0m/s?
Physics
1 answer:
Jobisdone [24]2 years ago
5 0

Answer:

F=507.7N

Explanation:

According to Newton's second law:

\sum F=m.a

in this case, the football players need to drag the coach at a constant velocity, thus means with no acceleration, so:

\sum F=0\\\\-F_f+F_p*cos(\theta)=0\\\\

there are 20 degrees between the two ropes that means each player exerts a force 10 degrees from the zero reference.

F_p=2*F\\\\F=\frac{1000N}{2*cos(10)}\\\\F=507.7N

You might be interested in
5,6,1,9,21,37,68 ? find missing​
maria [59]

Answer:

Missing numbers are 3,11,13, 15,17,19, 23,27,29 and wrong are 6,68

4 0
2 years ago
14. The average speed of a car was 60 m/s by the time it reached the finish line. The car moved in a straight line and traveled
Leni [432]
7.5m. Have a good day :)
4 0
2 years ago
A helicopter is ascending vertically with a speed of 5.10m/s. At a height of 105m above the Earth, a package is dropped from a w
valkas [14]

Op here is another problem exactly like that. Just plug in your variables instead. And remember, time is never negative.

5 0
2 years ago
a ball drops some distance and loses 30 j of gravitational potential energy. do not ignore air resistance. how much kinetic ener
aniked [119]

Thus, more than 30 J of potential energy can be loosed by the ball. Thus, the gravitational potential energy of the ball is more than 30 J.

If there is no air resistance, the ball's potential energy is entirely transformed into kinetic energy. When air resistance is taken into account, a portion of the potential energy is used to overcome it. Thus, AU > AKE. In the current scenario, a ball gains 30 J of kinetic energy while falling and is treated as encountering air resistance. The energy that an object retains due to its position in relation to other objects, internal stresses, electric charge, or other factors is known as potential energy in physics. The potential energy will be transformed into kinetic energy if the stones fall. High on the tree, branches have the potential to fall, which gives them energy. Chemical potential energy exists in the food we eat.

Learn more about potential energy here:

brainly.com/question/24284560

#SPJ4

5 0
9 months ago
21. (a) Aircraft sometimes acquire small static charges. Suppose a supersonic jet has a 0.500-μC charge and flies due west at a
beks73 [17]

Answer:

Explanation:

The picture attached shows the full explanation and i hope it helps. Thank you

6 0
3 years ago
Other questions:
  • Are the days with the longest daylight always in the summer? Are the days with the shortest daylight always in the winter? Expla
    13·1 answer
  • When is an atom stable? A. when it has a full outer orbit. B. when it has the same amount of elections as protons. C. when it ha
    11·2 answers
  • I have a table that I recorded of my data and my partner's data
    12·1 answer
  • What happens when the moon faces one side of the earth?
    12·1 answer
  • Which statement best describes what happens when a sound source is moving? As the sound source approaches the observer, the pitc
    9·2 answers
  • HELP ME PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!
    9·1 answer
  • If you are pushing on a box with a force of 20 N and there is a 7 N force on the box due to sliding friction, what is the net fo
    15·2 answers
  • What quantities are needed to describe the position of a water fountain relative to where you are standing? the distance and tim
    15·2 answers
  • 1.what are barriers that you have encountered in dancing?
    10·1 answer
  • Please help!
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!