The Force components acting on an object

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SUMMARY

The discussion focuses on calculating the x and y components of acceleration for a 1.4 kg object under the influence of various forces. Users suggest adding the forces in both directions and dividing by 1.4 to find the net force components. The correct application of the formula F = M•a is emphasized, along with the importance of using appropriate significant figures and units in the final answer. The initial calculation of 4.285 was identified as incorrect, prompting further clarification on the calculation steps.

PREREQUISITES
  • Understanding of Newton's Second Law (F = M•a)
  • Basic knowledge of vector addition in physics
  • Familiarity with significant figures in scientific calculations
  • Ability to work with units of measurement in physics
NEXT STEPS
  • Review vector addition techniques for force components
  • Study the concept of significant figures in scientific calculations
  • Learn about unit conversions in physics problems
  • Practice problems involving Newton's Second Law with varying mass and force scenarios
USEFUL FOR

Students studying physics, educators teaching mechanics, and anyone interested in mastering the calculation of forces and acceleration in physical systems.

Cb8
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Homework Statement
The forces in (Figure 1) act on a 1.4 kg object.

A) What is the value of ax, the x-component of the object's acceleration?

B) What is the value of ay, the y-component of the object's acceleration?
Relevant Equations
F= M•a
Another user suggested adding the forces in the x and y direction then dividing by 1.4.
Doing this for A) gave me 4.285 which was wrong any suggestions?
 

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How about finding the x and y components of the net force?
 
Cb8 said:
Another user suggested adding the forces in the x and y direction then dividing by 1.4.
Doing this for A) gave me 4.285 which was wrong any suggestions?
That suggestion is correct. How sure are you that your work was correct? The suggestion by @Doc Al involves the same procedure as that of the other user up to the point of dividing by 1.4.
 
Cb8 said:
Homework Statement:: The forces in (Figure 1) act on a 1.4 kg object.

A) What is the value of ax, the x-component of the object's acceleration?

B) What is the value of ay, the y-component of the object's acceleration?
Relevant Equations:: F= M•a

Another user suggested adding the forces in the x and y direction then dividing by 1.4.
Doing this for A) gave me 4.285 which was wrong any suggestions?
1. How did you calculate the value 4.285? I get a different answer. Can you show your steps?
2. Values can be positive or negative so check you are using the correct sign.
3. You need to round your answer to an appropriate number of signficant figures.
4. You need to include the units.
 

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