I dont know if this is advanced or not but help needed

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SUMMARY

The discussion centers on determining the maximum angle at which a downward force can be applied to a box being pushed across a floor at a constant velocity, given a coefficient of kinetic friction of 0.41. To solve this problem, participants emphasize the importance of creating a force diagram to analyze the forces acting on the box, particularly focusing on calculating the Normal Force. The key to finding the critical angle lies in understanding the balance of forces that results in zero net acceleration.

PREREQUISITES
  • Understanding of Newton's laws of motion
  • Knowledge of friction coefficients, specifically kinetic friction
  • Ability to draw and interpret force diagrams
  • Familiarity with basic trigonometry for angle calculations
NEXT STEPS
  • Study the concept of Normal Force in physics
  • Learn how to calculate frictional forces using the coefficient of kinetic friction
  • Explore the principles of static and dynamic equilibrium
  • Investigate the role of angles in force applications and their effects on motion
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Students and educators in physics, mechanical engineers, and anyone interested in understanding the dynamics of forces and motion in practical scenarios.

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someone is puchsing a box across a floor at a constant velocity. The coefficient of kinetic friction is .41. THe pushing force is directed downward at an angle below the horizontal. If the angle is greater then a certain value then no matter the force the box can not be moved. What is this angle.

I really have no clue where to start
 
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juliesangelcleo said:
I really have no clue where to start

First you need to draw a force diagram for the box and from there, solve for the Normal Force. Is the magnitude of the force on the box given in the problem?
 
then think about under how the net force of the system may becomes zero (ie. box doesn't accelerate)
 

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