Focus on Concepts, Question 10 - Three forces

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SUMMARY

The discussion focuses on a physics problem involving a 2.70-kg block subjected to three forces: a 75N force at a 38-degree angle, a 54N horizontal force, and a 93N force at a 65-degree angle. The block starts from rest and moves a displacement of 6.50 m. The final speed of the block can be determined using Newton's second law and kinematic equations, although the specific calculations were not detailed in the discussion.

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  • Understanding of Newton's laws of motion
  • Basic knowledge of vector resolution of forces
  • Familiarity with kinematic equations
  • Ability to calculate resultant forces
NEXT STEPS
  • Review vector resolution techniques for forces
  • Study Newton's second law in detail
  • Learn how to apply kinematic equations to solve for final velocity
  • Practice problems involving multiple forces acting on an object
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Students studying physics, particularly those focusing on mechanics and force analysis, as well as educators looking for practical examples of force interactions.

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Homework Statement



Three forces act simultaneously on a 2.70-kg block. For clarity the drawings show the forces separately. The block starts from rest and, as a result of the combined action of the forces, undergoes a displacement s, which has a magnitude of 6.50 m. What is the final speed of the block?

First image: angle 38 degrees, F=75N
Second: 54N= Horizontal force
Third: angle 65, F=93N


Homework Equations





The Attempt at a Solution

 
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