How Do You Calculate Resultant and Difference of Forces?

  • Thread starter Miraj Kayastha
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In summary, there are two methods for finding the resultant and difference of forces, with the resultant being calculated by adding the forces and the difference being calculated by subtracting the forces. Both of these methods are correct. The difference of forces refers to the comparison or contrast between the two forces, and can be represented by expressions such as (-4) - (-8) or (+8) - (+4).
  • #1
Miraj Kayastha
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There are forces -4 and -8 Newton.
If we need to find the resultant of the force we do : (-4) + (-8) = -12 N
If we need to find the difference in force we do : (-4) - (-8) = +4N

Are the two methods correct?
 
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  • #2
Yes,the tow methods are correct.
 
  • #3
Miraj Kayastha said:
There are forces -4 and -8 Newton.
If we need to find the resultant of the force we do : (-4) + (-8) = -12 N
If we need to find the difference in force we do : (-4) - (-8) = +4N

Are the two methods correct?

Yes
The resultant force has a physical meaning that is easy to grasp but what do you think the 'difference' represents? It's worth while exploring around things like this if you want to improve your understanding.
 
  • #4
Is the difference in force : (-4) - (-8) or (+8) - (+4)?
 
  • #5
Miraj Kayastha said:
Is the difference in force : (-4) - (-8) or (+8) - (+4)?
Those expression are equivalent.

A + (-B) = A - B

-A - (-B) = -A + B = B - A, etc.
 
  • #6
Miraj Kayastha,
What do you understand by the term Difference of forces?
 

1. What is subtraction ad resultant?

Subtraction ad resultant is a mathematical operation in which one number is subtracted from another to find the difference between them. The result of this operation is called the resultant.

2. How is subtraction ad resultant different from regular subtraction?

Subtraction ad resultant involves subtracting two numbers to find the difference, whereas regular subtraction involves subtracting one number from another to find the remainder or how much is left.

3. What is the formula for finding the resultant in subtraction ad resultant?

The formula for finding the resultant in subtraction ad resultant is: Resultant = minuend - subtrahend. The minuend is the number from which another number is being subtracted, and the subtrahend is the number being subtracted from the minuend.

4. Can the resultant be negative in subtraction ad resultant?

Yes, the resultant can be negative in subtraction ad resultant. This happens when the subtrahend is larger than the minuend, resulting in a negative difference or resultant.

5. How is subtraction ad resultant used in real life?

Subtraction ad resultant is used in various situations in real life, such as calculating change when making a purchase, finding the difference in scores or points in a game, or determining how much time has passed between two events. It is also commonly used in financial calculations and budgeting.

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