Calculating Minimal Force for Constant Speed: Friction & Mass Relationship

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In summary, "Minimal Force" questions are specific inquiries used to identify the smallest and most effective action or solution to achieve a desired outcome. They differ from other types of questions by being more targeted and action-oriented. These questions can be applied in various situations, such as problem-solving, decision-making, and brainstorming activities. They can be used in any field or subject, and some examples include finding the simplest way to reduce carbon footprint, determining the minimum time needed for a project, and identifying the most efficient strategy for increasing sales.
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liz777
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Homework Statement



A 20 kg block is on a surface where the coefficient of friction is 0.30. Find the minimal force needed to have the block more slowly at a constant speed.


The Attempt at a Solution



So I did coefficient of friction(mass)(gravity)=frictional force
20(0.3)(9.8)=58.86 N is the frictional force

Now is the minimal force needed to move the block like 58.87?
 
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  • #2
Yes, for the block to be moving at a constant velocity (by Newton's 1st Law), friction = force applied on block. Hence your answer is absolutely correct.
 
  • #3



Your calculation for the frictional force is correct. However, the minimal force needed to move the block at a constant speed would be equal to the frictional force, in this case 58.86 N. This is because in order for the block to move at a constant speed, the applied force (in this case, the minimal force) must be equal and opposite to the frictional force. Any additional force would result in an acceleration of the block. So to answer your question, yes, the minimal force needed to move the block at a constant speed is 58.86 N.
 

1. What is a "Minimal Force" question?

A "Minimal Force" question is a type of inquiry that seeks to identify the smallest or simplest action or solution needed to achieve a desired outcome. It is often used in problem-solving and decision-making processes to streamline and focus efforts.

2. How is a "Minimal Force" question different from other types of questions?

Unlike open-ended or broad questions, "Minimal Force" questions are specific and targeted towards finding the most efficient and effective solution. They also tend to be more action-oriented, focusing on what can be done rather than just exploring possibilities.

3. When should I use a "Minimal Force" question?

"Minimal Force" questions can be useful in various situations, such as when facing a complex problem, making a decision, or trying to improve a process. They are also helpful in brainstorming and problem-solving activities with a group or team.

4. Can "Minimal Force" questions be applied in any field or subject?

Yes, "Minimal Force" questions can be used in any field or subject that requires problem-solving or decision-making. They are particularly useful in scientific research, engineering, and business management, but can also be applied to personal situations and everyday life.

5. What are some examples of "Minimal Force" questions?

Some examples of "Minimal Force" questions include: "What is the simplest way to reduce our carbon footprint?", "What is the minimum amount of time needed to complete this project?", "What is the most efficient strategy for increasing sales?", and "What is the smallest change we can make to improve customer satisfaction?"

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