Determine the combined force magnitude

In summary, the combined force magnitude of two forces represented by the vectors a=2i+-5j and b=-8i-3j was determined to be positive. The process involved adding the horizontal and vertical components separately and then simplifying. The correct form of the vectors is 2i-5j and -8i-3j, resulting in a combined force magnitude of 10. The suggestion to draw a picture was helpful in clarifying the concept.
  • #1
sdjackson79
5
0
a force represented by the vector a=2i+-5j and the other exerts a force b=-8i-3j determine the combined force magnitude
 
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  • #2
do you know what vectors are and how they are added? do you know basic Newtonian mechanics?

try drawing a picture, it should clarify things.
 
  • #3
I am having trouble with it I keep getting - 14
 
  • #4
what exactly are you doing? the answer is most definately positive.
 
  • #5
sorry I scrwed up (2i+5j)+(-8i-3j) I add the horizontal components then add the vertical components then simplify. I came up with 10 does this look right
 
  • #6
which is the correct form of the vectors? in your first post it was 2i-5j and -8i-3j. that way the magnitude of the sum force is 10.
 
  • #7
Sorry the first posting was the correct one 10 is the answer feeling kinda stupid thank you for the help
 

Related to Determine the combined force magnitude

What is meant by "combined force magnitude"?

The combined force magnitude refers to the total amount of force acting on an object, taking into account all the individual forces that are acting on it.

How do you determine the combined force magnitude?

To determine the combined force magnitude, you need to add up all the individual forces acting on the object, taking into account their direction and magnitude. This can be done using vector addition or by using trigonometric functions.

What is the difference between combined force magnitude and net force?

Combined force magnitude refers to the total amount of force acting on an object, while net force refers to the overall force that results from the combination of all the individual forces acting on an object. Net force takes into account the direction and magnitude of all the forces, while combined force magnitude only looks at the total amount of force.

Can the combined force magnitude be negative?

Yes, the combined force magnitude can be negative if the individual forces acting on an object are in opposite directions. In this case, the negative sign indicates that the forces are acting in opposite directions, canceling each other out to some degree.

What units are used to measure combined force magnitude?

The combined force magnitude is typically measured in Newtons (N) in the metric system or pounds (lbs) in the imperial system. Both units represent the amount of force required to accelerate a mass of 1 kilogram by 1 meter per second squared.

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