Work on Moving a 186kg Refrigerator

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SUMMARY

The discussion focuses on calculating the work done by a mover when pushing a 186kg refrigerator up a 10.0m friction-free ramp inclined at 11.0 degrees. The work is determined using the formula w = (F)(d), where force is the component of gravitational force acting along the ramp. Since there is no friction, the calculation can be simplified by considering the energy approach to find the work done against gravity.

PREREQUISITES
  • Understanding of basic physics concepts, specifically work and energy.
  • Knowledge of gravitational force and its components.
  • Familiarity with trigonometric functions to resolve forces at angles.
  • Ability to apply the work formula w = (F)(d) in practical scenarios.
NEXT STEPS
  • Calculate the gravitational force component along the ramp using trigonometry.
  • Explore energy conservation principles in frictionless systems.
  • Learn about different methods for calculating work in physics problems.
  • Investigate real-world applications of work calculations in moving heavy objects.
USEFUL FOR

This discussion is beneficial for physics students, movers, and anyone interested in understanding the mechanics of moving heavy objects on inclined planes.

Jonathan Teas
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Homework Statement


A mover loads a 186kg refrigerator into a moving van by pushing it up a 10.0m friction free ramp at an angle of inclination of 11.0degrees. How much work is done by the mover
thats all that was given.

Homework Equations


w=(F)(d)...work is =force times displacement

The Attempt at a Solution


i don't know how to account for the angle
 
Last edited:
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The work is done overcoming gravity. You could find the component of the gravitational force that is in the direction of the movement and use the work formula.

Since there is no friction, there is no loss of energy and you could find the answer with an energy approach. Or you could consider other ways of accomplishing the same work other than going up the ramp, simplifying the work calculation.
 

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