Calculating Force Needed to Overcome Resistance in m=1.45X10^6 kg Building

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SUMMARY

The discussion focuses on calculating the force needed to overcome resistance in a building with a mass of 1.45X10^6 kg and a resistance force that is 2.00 percent of the building's weight. The participant is confused about determining the force of friction (Ff) since the normal force (Fn) is zero due to zero acceleration (a=0 m/s²). The key equation used is Fa = Fn - Ff, which highlights the relationship between applied force and frictional force.

PREREQUISITES
  • Understanding of Newton's laws of motion
  • Knowledge of force equations, specifically Fa = Fn - Ff
  • Familiarity with concepts of weight and gravitational force
  • Basic algebra for solving equations
NEXT STEPS
  • Calculate the weight of the building using the formula: weight = mass × gravity (w = m × g)
  • Learn about calculating frictional force in static conditions
  • Explore the implications of zero acceleration on force calculations
  • Investigate the role of gravitational acceleration in force resistance problems
USEFUL FOR

Students studying physics, particularly those focusing on mechanics, as well as educators looking for examples of force calculations in real-world scenarios.

Kiyana
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Homework Statement



m= 1.45X10^6 kg
w=1.00X10^2 MJ
a=0 m/s^2
to over come the force resistance that was 2.00 percent of the building's weight

Homework Equations



Fa=Ff (force applied=force friction)

The Attempt at a Solution



Fa= Fn-Ff

Im confused on how to find the force friction, the Fn is 0 due to the fact that the acceleration is 0, but i have no clue how to find the Ff.
 
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I think you should post the whole problem on #1. I'm not really sure what's happening here.
 
Kiyana said:

Homework Statement



m= 1.45X10^6 kg
w=1.00X10^2 MJ
a=0 m/s^2
to over come the force resistance that was 2.00 percent of the building's weight

Homework Equations



Fa=Ff (force applied=force friction)

The Attempt at a Solution



Fa= Fn-Ff

Im confused on how to find the force friction, the Fn is 0 due to the fact that the acceleration is 0, but i have no clue how to find the Ff.

I am hesitant to say that I cannot help you. You must post the "proper context" of the problem. Just giving off values will not assist you. I am also not sure what are you trying to find out. The force of friction ? If that is so then why don't you consider the acceleration due to gravity if force resistance is 2.00 percent of the building's weight.
 

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