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
DerKrebs [107]
3 years ago
10

(a) The Eskimo pushes the same 50.0-kg sled over level ground with a force of 1.75 102 N exerted horizontally, moving it a dista

nce of 6.00 m over new terrain. If the net work done on the sled is 1.50 102 J, find the coefficient of kinetic friction.
Physics
1 answer:
vivado [14]3 years ago
3 0

Answer: 0.306

Explanation:

from the question we are given the following

mass of sled (m) = 50 kg

force (f) = 1.75 x 10^2 N = 175 N

distance (s) = 6 m

net work done on the sled = 1.50 x 10 ^2 N = 150 N

acceleration due to gravity (g)  = 9.8 m/s^2

coefficient of friction = μ

lets first calculate the frictional force (ff)

ff =  μ x m x g = μ  x 50 x 9.8 = 490 μ

work done on the slide by the applied force (W1)=  f x s = 175 x 6 = 1050 j

work done on the slide by frictional force (W2) = ff x s = 490 μ x 6 = 2940μ j

now the net work done is the work done by the frictional force subtracted from the work done by the applied force

net work done = W1 - W2

150 = 1050 -  2940μ

2940μ = 1050 - 150

μ = 900 / 2940

μ = 0.306

You might be interested in
Supposing you were in space in a weightless environment, would it require a force to set an object in motion
Jobisdone [24]

Yes.  If your smartphone was floating in front of your face, motionless
relative to you, it would require a force to start it moving toward you or
away from you. 

But there's no minimum force required.  ANY force, no matter how small,
even smaller than the smallest force that you can imagine, would set it in
motion. 

The thing is, though, that the smaller the force acting on it, the smaller
acceleration it would get, and the slower it would move away from where
it is. 

So if, say, you wanted to send it across the crew compartment and over
to your sleeping bag on the wall, and you had all day to watch it mope
along over there, you might breathe on it, and the force of your breath
would set it in slow motion in that direction.  But if you wanted to throw it
at your crewmate, you'd need to give it more force.
  
7 0
3 years ago
Energy from the Sun is transferred from the Earth’s surface to the atmosphere, resulting in
natali 33 [55]

Answer:

C make a the most sense hopefully this helps

4 0
3 years ago
Read 2 more answers
Why do my hair change colors?
kirza4 [7]
Ask ya mother .. she birthed you so she’ll know .
8 0
3 years ago
Find the fundamental unit involved in following derived unit a Newton Pascal cubic meter watt<br>​
saw5 [17]

Answer:

HAHAHAH

Explanation:

7 0
3 years ago
If you were creating a lamp by hand what type of material would you chose for the wiring and what material would you chose to co
il63 [147K]
A lot of it is all experimental as long as you are taking caution of safety while doing it. I personally would use copper wiring mainly for the fact that it is a nice conductor. For the wrap around the wiring i usually would use black or red electrical tape just because it has very nice insulator properties and is safe to use.
6 0
3 years ago
Other questions:
  • A long iron bar lies along the x-axis and has current of I = 16.4 A running through it in the +x-direction. The bar is in the pr
    5·1 answer
  • Scientist who first proposed the theory that the continents drifted is __________
    13·1 answer
  • Find the magnitude of the force needed to accelerate a 300 g mass with a⃗ = -0.205 m/s2 i^+0.700 m/s2 j
    6·1 answer
  • A hand pump is being used to inflate a bicycle tire that has a gauge pressure of 41.0 lb/in2. If the pump is a cylinder of lengt
    5·1 answer
  • When a 4kg mass is hung vertically on a light spring, the spring stretches 2.5cm. A.) How far will the spring stretch if an addi
    12·1 answer
  • Someone please help.
    7·1 answer
  • What mean by expansion effect of heat<br>​
    10·2 answers
  • A certain wave has a compressions and rarefactions.How should this wave be classified?
    12·1 answer
  • 1. According to paragraph 3 in the text, MOST of the electromagnetic waves from
    11·1 answer
  • If a piece of ribbon were tied to a stretched string carrying a transverse wave, then how is the ribbon observed to oscillate?a.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!