Calculating Static Friction and the Coefficient of Friction

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SUMMARY

The discussion focuses on calculating kinetic friction and the coefficient of friction for a block with a mass of 0.422 kg sliding down a ramp at an angle of 29.0°. The provided parameters include an acceleration of 1.58 m/s², a final velocity of 1.7 m/s, and a total time of 1.10 s. Participants emphasize the importance of understanding the distinction between the acceleration of the block down the ramp and the gravitational acceleration. A free body diagram is recommended as a starting point for solving the problem.

PREREQUISITES
  • Understanding of Newton's laws of motion
  • Knowledge of free body diagrams
  • Familiarity with the concepts of kinetic and static friction
  • Basic algebra for solving equations related to motion
NEXT STEPS
  • Calculate the coefficient of kinetic friction using the formula: μk = Fk / N
  • Explore the relationship between acceleration and forces acting on the block
  • Learn how to draw and interpret free body diagrams in physics
  • Investigate the effects of ramp angle on friction and acceleration
USEFUL FOR

Students studying physics, particularly those focusing on mechanics, as well as educators looking for practical examples of friction calculations in real-world scenarios.

KarleeZ
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*** Title says static - need kinetic friction!

Homework Statement



Find the amount of kinetic friction. A block with mass of 0.422kg slides down a ramp from rest. Given: acceleration = 1.58m/s^2, mass = 0.422kg, theta = 29.0°, velocity two (end): 1.7m/s, and total time is 1.10s. I also need to find the coefficient of friction.
 
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Start by drawing a free body diagram. When you say "acceleration = 1.58m/s^2", what is meant? Is that the acceleration of the block down the ramp, or the acceleration of the block due to gravity? (AKA where does the acceleration vector point).

That's the most I'm willing to help until I see some attempt at a solution.
 

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