Calculating Normal Force for Blacksmith's Anvil - Newton's Third Law

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SUMMARY

The discussion focuses on calculating the normal force exerted on a 68.2 kg blacksmith's anvil supported by a wooden block, utilizing Newton's Third Law. The primary equation discussed is F = ma, where the force (F) is derived from the mass of the anvil (68.2 kg) multiplied by the acceleration due to gravity (9.8 m/s²). Participants suggest verifying if the problem allows for rounding gravity to 10 m/s² and clarify the direction of positive forces. The correct normal force calculation is essential for understanding the equilibrium of forces acting on the anvil.

PREREQUISITES
  • Understanding of Newton's Third Law
  • Basic knowledge of force calculations (F = ma)
  • Familiarity with significant figures in physics
  • Concept of normal force in static equilibrium
NEXT STEPS
  • Review the concept of normal force in static equilibrium scenarios
  • Learn about significant figures and their impact on calculations
  • Explore variations in gravitational acceleration for different contexts
  • Practice problems involving force calculations with varying mass and gravity
USEFUL FOR

This discussion is beneficial for physics students, educators, and anyone interested in mastering force calculations and the application of Newton's laws in real-world scenarios.

rmalski
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Homework Statement

[/B]Find the normal force exerted on a 68.2 kg blacksmith's anvil by the level block of wood that is supporting it.

Homework Equations

[/B]f=ma Ff=uFn

The Attempt at a Solution

[/B]I have tried to find all the forces acting on the anvil while using its mass but I am not correct for some reason. I did 9.8x68.2 and that is all i know what to do right now
 
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Do you have a significant figures issue?

Chet
 
3. The Attempt at a Solution
I have tried to find all the forces acting on the anvil while using its mass but I am not correct for some reason. I did 9.8x68.2 and that is all i know what to do right now

That appears to be the right approach.

Did they say to assume g = 10 m/s/s rather than 9.8 m/s/s?

Did they say to assume up or down is positive?
 

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