Solving the Velocity of a Mass Moving Through a Loop With Friction

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SUMMARY

The discussion focuses on solving the velocity of a mass moving through a loop while accounting for friction and the normal force at the top of the loop. Key principles include circular motion and the conservation of energy, particularly emphasizing the need for the mass to maintain a minimum speed to avoid free fall. The equation N + Mg = Mv²/r is critical for analyzing forces at the highest point of the loop, where the normal force (N) and gravitational force (Mg) must balance the centripetal force required for circular motion.

PREREQUISITES
  • Circular motion dynamics
  • Conservation of energy principles
  • Free body diagram analysis
  • Basic algebra for solving equations
NEXT STEPS
  • Study the effects of friction on circular motion
  • Learn about centripetal force requirements in loops
  • Explore energy conservation in mechanical systems
  • Practice drawing and interpreting free body diagrams
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Physics students, educators, and engineers interested in mechanics, particularly those studying circular motion and energy conservation in dynamic systems.

gniniart
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hey, i have this problem where i need to use both circular motion and the conservation of energy to solve an object moving through a loop. Basically, there is friction considered and there is also a normal force when the object reaches the top of the loop. There are no values in this question, you just have to show steps in how you would find the velocity of the mass as it exits the loop. thx.
 
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Well good luck with that.
Did you read the posting guidelines?
 
ducm6.gif


ducm7.gif
The body is required to maintain a minimum speed to avoid free fall. The possibility of free fall is most stringent at the highest point of the loop. We, therefore, analyze the motion at the highest point with the help of the free body diagram as shown in the figure.

N+Mg = Mv^2/r
 

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