Explaining the Energy Transfer in a Chairlift's Start and Stop

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SUMMARY

The discussion centers on the energy transfer processes involved when a chairlift starts and stops. It is established that a fully loaded chairlift requires more energy to initiate movement due to inertia, which resists the change in motion. As the lift accelerates, gravitational potential energy is converted into kinetic energy, particularly when riders descend. While the chairlift operates at a constant speed, it continuously adds gravitational potential energy to the riders, dependent on the lift's speed.

PREREQUISITES
  • Understanding of Newton's laws of motion
  • Familiarity with concepts of gravitational potential energy
  • Basic knowledge of kinetic energy principles
  • Awareness of inertia and its effects on motion
NEXT STEPS
  • Study the principles of energy conservation in mechanical systems
  • Explore the calculations involved in gravitational potential energy
  • Learn about the dynamics of inertia and its impact on motion
  • Investigate the energy efficiency of chairlifts and similar systems
USEFUL FOR

Physics students, engineers, and anyone interested in understanding mechanical energy transfers in systems like chairlifts.

Kennedy111
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Homework Statement


Propose an explanation for the following fact. Include a description of the energy transfers that would take place when the lift starts and stops.

A fully loaded chairlift requires more energy to start then it does to maintain motion.

The Attempt at a Solution


I thought that perhaps it takes more energy in the beginning because the chairlift has inertia and is resisting the change. You need to apply more energy to get over this initial inertia.

I'm having a hard time including energy transfers...

I know that when the lift starts riders gain gravitational potential energy, which eventually turns into kinetic energy on the way back down the hill..

Thank you !
 
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