3 pulleys - 2 masses on incline plane

Thread starter Saints-94
Start date Dec 17, 2015
Tags

Incline Incline plane Plane Pulleys

In summary: The total length of the string is constant;The two lengths parallel to the slope are equal in length.In summary, The weight of the block is being pulled down by the rope and the two sections of the rope parallel to the slope shorten as the block descends.

Dec 18, 2015

haruspex

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Saints-94 said:

Will the acceleration be twice as much at the block compared to the log?

Yes.
But now I should confess something. The question posed is whether the log will move. To answer that, you do not need to worry about how fast it will move. You can suppose that it does not move, so there are no accelerations, and see whether the balance of forces is consistent with that.
However, most multiple pulley questions do involve different accelerations, and I felt it was important you found out how to deal with these.

<h2>1. What is the concept behind using pulleys in this scenario?</h2><p>The use of pulleys in this scenario allows for the distribution of weight and force, making it easier to lift and move heavy objects. By using multiple pulleys, the force required to lift the masses on the incline plane is reduced.</p><h2>2. How do the masses on the incline plane affect the system?</h2><p>The masses on the incline plane create a force that must be overcome in order to lift them. This force is dependent on the mass of the objects and the angle of the incline plane. As the masses increase, the force required to lift them also increases.</p><h2>3. What is the relationship between the number of pulleys and the force required to lift the masses?</h2><p>The more pulleys that are used, the less force is required to lift the masses. This is due to the distribution of weight and force across multiple pulleys, reducing the overall force needed to lift the masses.</p><h2>4. How does the angle of the incline plane affect the system?</h2><p>The angle of the incline plane affects the force required to lift the masses. As the angle increases, the force required to lift the masses also increases. This is because the weight of the masses is acting more perpendicular to the incline plane, making it more difficult to lift.</p><h2>5. What other factors can impact the system besides the number of pulleys and the angle of the incline plane?</h2><p>The friction between the pulleys and the incline plane, as well as the weight and distribution of the pulleys themselves, can also impact the system. Additionally, the strength and stability of the pulleys and the incline plane must also be considered in order to accurately predict the force required to lift the masses.</p>

1. What is the concept behind using pulleys in this scenario?

The use of pulleys in this scenario allows for the distribution of weight and force, making it easier to lift and move heavy objects. By using multiple pulleys, the force required to lift the masses on the incline plane is reduced.

2. How do the masses on the incline plane affect the system?

The masses on the incline plane create a force that must be overcome in order to lift them. This force is dependent on the mass of the objects and the angle of the incline plane. As the masses increase, the force required to lift them also increases.

3. What is the relationship between the number of pulleys and the force required to lift the masses?

The more pulleys that are used, the less force is required to lift the masses. This is due to the distribution of weight and force across multiple pulleys, reducing the overall force needed to lift the masses.

4. How does the angle of the incline plane affect the system?

The angle of the incline plane affects the force required to lift the masses. As the angle increases, the force required to lift the masses also increases. This is because the weight of the masses is acting more perpendicular to the incline plane, making it more difficult to lift.

5. What other factors can impact the system besides the number of pulleys and the angle of the incline plane?

The friction between the pulleys and the incline plane, as well as the weight and distribution of the pulleys themselves, can also impact the system. Additionally, the strength and stability of the pulleys and the incline plane must also be considered in order to accurately predict the force required to lift the masses.