Quick & Easy Problem: Pushing Box Up Ramp

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SUMMARY

The discussion centers on calculating the work done when pushing a box up a ramp with a specified length (L) and angle (theta) using a horizontal force (X pounds). Key calculations include determining the normal force, friction force, force against gravity, net force, and work done against friction and gravity. The user encountered an issue with their calculations due to using radian mode instead of degree mode on their calculator, which is critical for accurate trigonometric computations in this context.

PREREQUISITES
  • Understanding of basic physics concepts such as work, force, and energy.
  • Familiarity with trigonometry, particularly the use of angles in calculations.
  • Knowledge of forces acting on objects on inclined planes.
  • Proficiency in using scientific calculators, including mode settings (radians vs. degrees).
NEXT STEPS
  • Study the work-energy principle in physics.
  • Learn how to calculate forces on inclined planes, including normal and frictional forces.
  • Explore the differences between radian and degree measurements in trigonometry.
  • Practice problems involving work done against gravity and friction on ramps.
USEFUL FOR

This discussion is beneficial for physics students, educators, and anyone involved in mechanics or engineering who needs to understand the dynamics of forces on inclined surfaces.

Tom McCurdy
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Alright I am just trying to get a concept for a problem that I am doing

If you have a horizontal force of say X pounds and you want to push a box up a ramp that has a length of L with and angle of theta. How much work would you have done if you push the box the full length of L up the ramp?
 
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Tom McCurdy said:
Alright I am just trying to get a concept for a problem that I am doing

If you have a horizontal force of say X pounds and you want to push a box up a ramp that has a length of L with and angle of theta. How much work would you have done if you push the box the full length of L up the ramp?
What is the magnitude and direction of the normal force? What is the magnitude and direction of the friction force? What is the magnitude and direction of the force working against gravity? What is the net force? What is the work done against friction? What is the work done against gravity? What is the work done in giving the box kinetic energy?

AM
 
nevermind

sorry guys

Radian mode on the calculator instead of degree
 

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