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
77julia77 [94]
3 years ago
5

So far, you’ve been working with an "ideal" pulley system. How do you think real pulley systems are different, and how would tha

t affect the mechanical advantage of real pulley systems?
Plz really need help with this. And thank you so much
Physics
1 answer:
almond37 [142]3 years ago
8 0

Answer:

In an ideal pulley system is assumed as a perfect system, and the efficiency of the pulley system is taken as 100% such that there are no losses of the energy input to the system through the system's component

However, in a real pulley system, there are several means through which energy is lost from the system through friction, which is converted into heat, sound, as well as other forms of energy

Given that the mechanical advantage = Force output/(Force input), and that the input force is known, the energy loss comes from the output force which is then reduced, and therefore, the Actual Mechanical Advantage (AMA) is less than the Ideal Mechanical Advantage of an "ideal" pulley system

The relationship between the actual and ideal mechanical advantage is given by the efficiency of the pulley system as follows;

Efficiency \, \% = \dfrac{AMA}{IMA}  \times 100

Explanation:

You might be interested in
An object weighing 4 newtons swings on the end of a string as a simple pendulum. At the bottom of the swing, the tension in the
Anit [1.1K]

Answer:

(B) 0.5 g

Explanation:

Newton's second law says ∑  F i = m a .

the rate of change in momentum of a body is proportional to the force applied on the body.

f∝ma

f=kma

were k is constant and equal to 1

The centripetal acceleration is an acceleration.

the tension on the swing and object weight goes to the left hand side while the centripetal acceleration goes to the right handside

At the bottom of the swing, ΣF = FT – mg = mac;

notice that the tension in the swing is 1.5 times the weight of the object

we can write

1.5mg – mg = mac,

0.5mg = mac

0.5 g=ac

8 0
3 years ago
Read 2 more answers
A body is at aheight of 81m and is ascending upwards with a velocity of 12m/s .a body of 2 kg weight is dropped from it.if g=10m
butalik [34]
First the velocity drops to zero in 1.2 secs. In those seconds it went upwards for 7.2 m, then it went from 87.2 to 0m. x-x0=v0*t+1/2*g*t^2 ergo t=sqrt(2x/g) that is 4.1761 s. Finally the total time required is 5.3761 s
7 0
3 years ago
What is the role of the sun in the formation of clouds??
klasskru [66]
Cloud Formation<span> Due to Surface Heating. Some </span>clouds<span>form due to the heating of the Earth's surface. First, the </span>Sun<span>heats the ground, which then heats the air. ... This extra water vapor begins to condense out of the air parcel in the form of liquid water droplets.</span>
4 0
3 years ago
What can be found in a compost bin?
BigorU [14]
D. all of the above

Hope this helps!
5 0
3 years ago
Read 2 more answers
What type(s) of wave(s) transports visible light?
Anuta_ua [19.1K]
The Electromagnetic and Visible Spectra. I believe..
5 0
3 years ago
Other questions:
  • Average velocity is different than average speed because calculating average velocity involves ?
    6·2 answers
  • The New Horizons probe that passed by Pluto during July 2015 is one of the fastest spacecraft ever assembled. It was moving at a
    13·1 answer
  • A boy and a girl are riding a merry- go-round which is turning ata constant rate. The boy is near the outer edge, while a girl i
    10·1 answer
  • PLEASE HELP ME
    8·1 answer
  • The neck is a _______.
    13·2 answers
  • As temperature increases, ________. Group of answer choices the resistance of a conductor remains the same the resistance of a c
    12·1 answer
  • 8. How many families (groups) are on the periodic table ?<br> 03<br> 7<br> 18<br> 20
    9·1 answer
  • How are the terms atom and element related
    15·2 answers
  • Physical science-current can be increased by...
    10·2 answers
  • A 0.017-kg acorn falls from a position in an oak tree that is 18.5 meters above the ground. Calculate the velocity of the acorn
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!