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
seraphim [82]
3 years ago
9

Ice-skater slides toward a sled sitting on the ice and hits it. The skater exerts a 12.6 N force on the sled at an angle of 15.3

° below the horizontal. The sled then moves 15.4 m forward. How much work did the skater do on the sled? Assume friction is negligible.
Knowns Unknown

F = ____________ d = _____________ W = ?

θ = ____________

Solve for the Unknown

a. Write the equation for work
b. Insert known quantities
Physics
1 answer:
RideAnS [48]3 years ago
5 0

Answer:

Expression of work done is

W = Fd cos\theta

Work done to move the sled is given as 187.2 J

Explanation:

As we know that the formula of work done is given as

W = Fd cos\theta

here we know that

F = 12.6 N

d = 15.4 m

\theta = 15.3 degree

so we will have

W = 12.6 \times 15.4 cos15.3

W = 187.2 J

You might be interested in
True or false? Once the sun explodes, the whole solar system will go with it.
liberstina [14]
True. That is how powerful the sun is. But it will explode in only about 5 billion years.
6 0
4 years ago
URGENT PLEASE ANSWER THIS ASAP I WILL MARK YOU THE BRAINLIEST !!!
kykrilka [37]

Answer:

C would be the answer

Explanation:

Hope this helps! :)

5 0
3 years ago
Read 2 more answers
If the mass of an object on Earth is 18 grams, what would the mass of the same object be on the Moon?
Tanya [424]

Answer:18 grams

Explanation:

The mass of an object doesn't change,it is the same everywhere irrespective of it location,therefore if the mass of an object in earth is 18 grams, the mass of the object in the moon will also be 18 grams

4 0
3 years ago
3. A dog walks a distance of 100 ft. in 20 s of time. What is the dog's
natta225 [31]
The answer is A.
100/20=5
8 0
3 years ago
Read 2 more answers
How does the work needed to lift an object and the gravitational potential energy of an object compare
Ganezh [65]

When you do work to lift the object, the amount of work you do BECOMES the object's gravitational potential energy.  It GETS its potential energy from the work you do to lift it.  They're equal.  You lose it, and the object gains it.  Energy is not created or destroyed.  It's just transferred from you to the object.  

Later, when you DROP the object, GRAVITY does the same amount of work on it, to pull it to the ground.  Again, no energy is created or destroyed.  Every time a force acts to move anything, the energy to do it comes from somewhere, and the energy goes somewhere.

8 0
3 years ago
Other questions:
  • 50 POINTS! A supplier wants to make a profit by buying metal by weight at one altitude and selling it at the same price per poun
    11·2 answers
  • What is the IMA of the following pulley system? 1 2 3 4
    10·2 answers
  • the length,height and width of a cube are each 3cm if the cube is cut in half to form two rectangular pieces what is the total s
    12·2 answers
  • Two point charges, q1 -25 µc and q2 +50 µc are separated by a distance of d = 12 cm. the electric field at the point p is zero.
    8·1 answer
  • if javier has a car with a mass of 250,000 kg and a force of 300 newtons.what will be the accleration.
    12·1 answer
  • The fundamental frequency of a pipe that is open at both ends is 564 hz . part a how long is this pipe?
    7·2 answers
  • What is the charge of a lambda particle in elementary charges?
    12·2 answers
  • 3. Study the position-time graph for a bicycle. Which statement is supported by the graph?
    7·1 answer
  • Mention various medium level and higher level human resources related to engineering.<br>​
    14·1 answer
  • While at the county fair, you decide to ride the Ferris wheel. Having eaten too many candy apples and elephant ears, you find th
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!