Momentum/Conservation of energy

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SUMMARY

The discussion centers on a physics problem involving momentum and the conservation of energy, specifically analyzing a collision between Fred and Brutus. Fred, with a mass of 50.0 kg, runs at 6.10 m/s, while Brutus, weighing 130 kg, moves at 5.10 m/s. After colliding, they fall and slide on Astroturf with a coefficient of kinetic friction of 0.330. The key equations to solve this problem include those for kinetic energy and the relationship between force and friction.

PREREQUISITES
  • Understanding of momentum conservation principles
  • Knowledge of kinetic energy equations
  • Familiarity with the concept of friction and its coefficients
  • Basic algebra for solving physics equations
NEXT STEPS
  • Study the conservation of momentum in inelastic collisions
  • Learn how to calculate kinetic energy using the formula KE = 0.5 * m * v^2
  • Research the effects of friction on motion, particularly in sports contexts
  • Explore real-world applications of physics in sports dynamics
USEFUL FOR

This discussion is beneficial for physics students, educators, and anyone interested in understanding the principles of momentum and energy conservation in real-world scenarios, particularly in sports physics.

Danielle_6
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Homework Statement



Fred (mass 50.0 kg) is running with the football at a speed of 6.10 m/s when he is met head-on by Brutus (mass 130 kg), who is moving at 5.10 m/s. Brutus grabs Fred in a tight grip, and they fall to the ground. How far do they slide?The coefficient of kinetic friction between football uniforms and Astroturf is 0.330 .

Homework Equations





The Attempt at a Solution

 
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Danielle_6,

You got to try something before we can help you. At least a guess. What is the formula for kinetic energy? How does force relate to coefficient of kinetic friction? TRY!
 

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