# Three Blocks Connected Concepts

• Jack Arnett
In summary, the Homework Statement states that if the pulleys are massless and frictionless, then Mc will move at a constant velocity.
Jack Arnett
Unsure what or which answers are incorrect.

1. Homework Statement

In the figure below, assume that the pulleys are massless and frictionless.
**Attached File**
The masses of the blocks are Ma=1.50 kg, Mb=4.00 kg, Mc=6.00 kg, and there is friction between the horizontal plane and Mc, (μk≠0). Mc is observed to travel at a constant velocity.

True, False, Greater than, Less Than, or Equal to
Tx is ... Ty
Mc is moving to the right
Ma*g is ... Tz.
The magnitude of the total force on Mc is ... 0
Mb accelerates downward
Tz is ... Ty

Tz=Tw
Ty=Tx

## The Attempt at a Solution

Tx is EQUAL to Ty
Mc is moving to the right TRUE
Ma*g is LESS THAN Tz.
The magnitude of the total force on Mc is EQUAL TO 0
Mb accelerates downward TRUE
Tz is LESS THAN Ty

#### Attachments

• randomlabel.png
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Jack Arnett said:

## The Attempt at a Solution

Tx is EQUAL to Ty
Mc is moving to the right TRUE
Ma*g is LESS THAN Tz.
The magnitude of the total force on Mc is EQUAL TO 0
Mb accelerates downward TRUE
Tz is LESS THAN Ty

Some of these are incorrect.

"Mc is observed to travel at a constant velocity"

What does this imply about the motion of Ma and Mb?
And what does the mean about the sum of the forces on Ma & Mb?

billy_joule said:
Some of these are incorrect.

"Mc is observed to travel at a constant velocity"

What does this imply about the motion of Ma and Mb?
And what does the mean about the sum of the forces on Ma & Mb?

The motion as in Ma will rise and Mb will fall? Also meaning the force on Mb is greater than Ma?

The acceleration of Mc is zero, what, then, is the acceleration of Ma and Mb?

.

Last edited:
Honestly I just need the answer, I'm running out of time.

Imagine a truck towing a trailer, can the truck go at constant velocity and the trailer be accelerating? Can the trailer go faster or slower than the truck?

Masses A,B & C are connected. Unless otherwise stated always assume that string does not stretch or go slack. In other words, the velocity and acceleration of all three blocks is equal.

Yes, I'm still very confused which answer you offering hints for which are incorrect

This is an unacceptable response on Physics Forums.
Well you were no help...

Particularly these parts:
• Full solutions on a homework problem should never be given. Only hints and explanations are allowed.

On helping with questions: Any and all assistance given to homework assignments or textbook style exercises should be given only after the questioner has shown some effort in solving the problem. If no attempt is made then the questioner should be asked to provide one before any assistance is given. Under no circumstances should complete solutions be provided to a questioner, whether or not an attempt has been made.
Also, it's generally considered bad manners to edit/remove posts. It makes the thread harder for others to follow (and less likely to help..).

## 1. What is the concept of "Three Blocks Connected"?

"Three Blocks Connected" is a scientific concept that refers to the idea that three distinct elements or factors are interconnected and have an effect on each other in a system. These elements can be anything from objects, organisms, or even abstract concepts.

## 2. How does the "Three Blocks Connected" concept work?

The "Three Blocks Connected" concept works by understanding the relationships and interactions between the three blocks or elements. Each block has an effect on the other two, creating a chain reaction. This concept is often used in systems thinking and can be applied to various fields such as biology, ecology, and even social sciences.

## 3. What are the advantages of using the "Three Blocks Connected" concept?

Using the "Three Blocks Connected" concept allows scientists to better understand complex systems and how different elements within them interact with each other. It also helps in predicting the behavior of the system and identifying potential issues or problems that may arise.

## 4. Can the "Three Blocks Connected" concept be applied in real-life situations?

Yes, the "Three Blocks Connected" concept can be applied in various real-life situations, such as studying the interactions between different species in an ecosystem, understanding the relationships between economic factors, or analyzing the impact of social media on human behavior.

## 5. Are there any limitations to the "Three Blocks Connected" concept?

Like any scientific concept, the "Three Blocks Connected" concept also has its limitations. It may oversimplify complex systems and may not account for all factors involved. Additionally, the accuracy of predictions based on this concept depends on the quality and accuracy of the data used.

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