Can Static Friction Do Work on an Object?

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SUMMARY

The assertion that static friction can never do work on an object is false. Static friction can perform work when analyzed from a moving frame of reference, such as when a block rests on a cart that is in motion. In this scenario, the static friction between the block and the cart allows the block to accelerate with the cart, effectively doing work on the block. This concept is crucial for understanding the dynamics of objects in non-inertial frames.

PREREQUISITES
  • Understanding of Newton's laws of motion
  • Familiarity with the concept of work in physics
  • Knowledge of static friction and its properties
  • Basic grasp of reference frames in physics
NEXT STEPS
  • Research the role of static friction in non-inertial reference frames
  • Explore the concept of work-energy theorem in physics
  • Study examples of static friction in real-world applications
  • Learn about the differences between static and kinetic friction
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Students studying physics, educators teaching mechanics, and anyone interested in the principles of friction and motion.

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Homework Statement


My textbook has a true or false problem that says Static Friction can never do work on an Object and they say that it's false.. How can static friction do work?
 
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Consider taking measurements in a moving frame of reference.

Or consider a block resting on a cart (with static friction), and the cart moves.
 

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