How Do Incline Angle Changes Affect Normal and Friction Forces?

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SUMMARY

The discussion focuses on the effects of incline angle changes on normal and friction forces acting on a block at rest. As the angle θ increases, the normal force decreases while the static friction force adjusts to prevent motion, maintaining equilibrium until the angle exceeds the static friction threshold. Additionally, the second question regarding the acceleration of a stone falling through the air with air resistance is introduced but not fully explored in this thread.

PREREQUISITES
  • Understanding of static friction and normal force concepts
  • Knowledge of Newton's laws of motion
  • Familiarity with free body diagrams
  • Basic principles of forces acting on inclined planes
NEXT STEPS
  • Study the relationship between incline angles and normal force calculations
  • Learn about static friction coefficients and their role in motion on inclines
  • Explore free body diagram techniques for analyzing forces
  • Investigate the effects of air resistance on falling objects
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Students studying physics, particularly those focusing on mechanics, as well as educators looking for examples of incline problems and force analysis.

123lar
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Two questions! PLEASE HELP :)

Homework Statement



A block rests on an incline that makes angle θ with the horizontal. The block remains at rest as θ is slowly increased. What happens to the magnitudes of the normal force and the static friction force of the incline on the block?

A stone of mass 1 kg and weight 10 N falls through the air. The air resistance acting on the stone is 2 N. What is the acceleration of the stone?



Please explain both answers. THANK YOU!
 
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Please show an attempt at the solution.
 


1. It makes it easier if you have each question in its own thread. This way we all don't have to guess which question each post in the tread is talking about.
2. You haven't shown any work. We can't help you until you show us some work.

Let's concentrate on the first problem. After you've read the forum rules, specifically the ones pertaining to the homework forum, post the second question as a new thread.

What seems to have you stumped?
 

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