Solve Physics 11 Homework: Work to Slide Block on Shelf

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SUMMARY

The discussion centers on calculating the work done in sliding a 1.0 kg block of wood along a shelf. The block is moved a distance of 1.5 m with a kinetic coefficient of friction of 0.23. The correct formula for work, W = F x d, requires the application of the frictional force to determine the work done against friction. The calculated work done is 3.4 J, which is derived from the frictional force acting on the block during its movement.

PREREQUISITES
  • Understanding of Newton's laws of motion
  • Knowledge of friction coefficients
  • Familiarity with the work-energy principle
  • Basic algebra for solving equations
NEXT STEPS
  • Study the calculation of frictional force using the formula F_friction = μ x N
  • Learn about the work-energy theorem in physics
  • Explore examples of work done against friction in various scenarios
  • Review the concept of uniform velocity and its implications on net force
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Students studying physics, particularly those tackling mechanics and work-energy problems, as well as educators looking for practical examples of friction and work calculations.

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Homework Statement



A 1.0 kg block of wood is lifted a distance of 1.5 m from the floor and placed on a wooden shelf. A steady horizontal force is then applied to the block, causing it to slide sideways along the shelf a distance of 1.5 m at a uniform velocity. The kinetic coefficient of friction for the block when it is on the shelf is 0.23.
How much work is done sliding the block along the shelf?

Homework Equations



W = F x d

The Attempt at a Solution



Is there some formula I should be using?
I tried W = F x d but that doesn't give me the right answer of 3.4 J . Help?
 
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What are you using for F?
 

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