Calculating Average Force During Collision

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SUMMARY

The discussion focuses on calculating the average force exerted by the ground on a person during a collision, specifically when the person's mass is 220 kg and the average acceleration during the collision is 75.0 m/s². The correct approach involves applying Newton's Second Law, represented by the equation F = MΔV, to determine the net force acting on the individual. The net force calculation must account for both the gravitational force acting downward and the reaction force from the ground acting upward.

PREREQUISITES
  • Understanding of Newton's Second Law of Motion
  • Basic knowledge of force and acceleration concepts
  • Familiarity with mass and weight calculations
  • Ability to perform unit conversions and calculations involving kilograms and meters per second squared
NEXT STEPS
  • Study the application of Newton's Second Law in collision scenarios
  • Learn about calculating net force in various physical contexts
  • Explore the concept of impulse and momentum in collisions
  • Investigate the effects of different masses and accelerations on force calculations
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Physics students, educators, and anyone interested in understanding the dynamics of collisions and force calculations in real-world scenarios.

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Homework Statement



A person mass is 2.20 times 10 raised tothe second kg...he falls and hits the ground. His average accelaration over the course of the collision is 75.0 m/s squared. Find the avarage force that the ground exerts on him during collision.

Homework Equations



F=MDeltaV

The Attempt at a Solution

 
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That's a pretty heavy person at 220 kilos. Anyway, your relevant equation is incorrect. Try Newton's 2nd law. That will give you the net force acting on the person during the collision. The net force includes his weight down and the gound force acting up.
 

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