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
Flura [38]
2 years ago
5

An object of mass 100kg is raised 2m above the ground using an Inclined Plane of length 10m calculate the effort parallel to inc

lined plane (g=9.8m/s2
Physics
1 answer:
MArishka [77]2 years ago
8 0

Answer:

Slope = 2 m / 10 m = 1/5

For every  5 m of effort the object will be raised 1 m

W = work done on object = M g h      increase in PE of object

E S = W      where E is effort and S the distance thru which the effort acts

E S = M g H

E = 100 kg * 9.8 m/s^2 * 2 m / 10 m = 196 kg m / s^2 = 196 N

Check: total work = 2 * 9.8 * 100 = 1960 J

Force Needed = 1960 J / 2 m = 980 Newtons

Mechanical advantage = 980 / 196 = 5   as one would expect since the object is raised 1 m for every 5 m of force input

You might be interested in
Gravitational pull between 2 objects is determined by which of the following?
vampirchik [111]
Both distance between and mass of the 2 objects.
3 0
3 years ago
Read 2 more answers
The distance between two crests of a transverse wave is referred to as the Question 1 options: medium. amplitude. wavelength. ph
Oksi-84 [34.3K]

Answer:

Wavelength

Explanation:

Wavelength

5 0
3 years ago
2. An object with moment of inertia ????1 = 9.7 x 10−4 kg ∙ m2 rotates at a speed of 3.0 rev/s. A 20 g mass with moment of inert
svetoff [14.1K]

Answer:

2.85 rad/s

Explanation:

5 cm = 0.05 m

20 g = 0.02 kg

When dropping the 2nd object at a distance of 0.05 m from the center of mass, its corrected moments of inertia is:

I_2 = 1.32\times10^{−6} + 0.02 * 0.05^2 = 0.513\times10^{-4} kgm^2

So the total moment of inertia of the system of 2 objects after the drop is:

I = I_1 + I_2 = 9.7\times10^{-4} + 0.513\times10^{-4} = 0.0010213 kgm^2

From here we can apply the law of angular momentum conservation to calculate the post angular speed

\omega_1 I_1 = \omega_2 I

\omega_2 = \omega_1 \frac{I_1}{I} = 3 \frac{9.7\times10^{-4}}{0.0010213} = 2.85 rad/s

6 0
3 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
3 years ago
Select the correct answer. An airplane is flying at a constant speed in a positive direction. It slows down when it approaches t
Triss [41]

An airplane is flying at a constant speed in a positive direction. It slows down when it approaches the airport where it's going to land. this is an example of negative acceleration (D).

7 0
3 years ago
Other questions:
  • What is the total resistance of 3 resistors of 3ohms added together in series?
    9·1 answer
  • Two concentric current loops lie in the same plane. The smaller loop has a radius of 3.6 cm and a current of 12 A. The bigger lo
    8·1 answer
  • [OU.01] The diagram below shows two waves, Wave 1 and Wave 2, traveling in the same medium.[OU.01] The diagram below shows two w
    10·2 answers
  • A block of mass 2 kg is placed on the floor. The coefficient of static friction is 0.4. A horizontal force of 2.5 N is applied o
    11·1 answer
  • A ship can carry more load than aeroplane of same size. why?​
    14·1 answer
  • Water in the oceans, rivers, and lakes turns to water vapor. This process is called ___________ and requires heat energy from th
    5·2 answers
  • A school bus moves at speed of 35 mi/hr for 20 miles. How long will it take the bus to get to school?
    9·2 answers
  • Which wave has a longer wavelength?
    6·1 answer
  • Go to his profile and roast the mess out of him plzz 403665fl 50 points
    12·1 answer
  • Which one is it? Chemical, or ,Mechanical<br><br><br> Flakes of brick fall off due to wind and rain.
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!