Needs help with pressure and work done

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SUMMARY

The discussion revolves around the comparison of pressure exerted by two rocks thrown from different heights, specifically 100m and 200m. Both rocks have the same mass and acceleration, leading to the same force according to Newton's second law (F=ma). However, the rock dropped from 200m exerts greater pressure upon impact due to the increased work done, which is related to impulse and momentum during the collision. This highlights the distinction between force and pressure in the context of height and impact dynamics.

PREREQUISITES
  • Understanding of Newton's second law (F=ma)
  • Basic concepts of pressure and force
  • Knowledge of work-energy principles
  • Familiarity with impulse and momentum in collisions
NEXT STEPS
  • Study the relationship between height and potential energy in physics
  • Learn about the work-energy theorem and its applications
  • Explore the concepts of impulse and momentum in detail
  • Investigate the effects of different heights on impact forces
USEFUL FOR

Students studying physics, educators teaching mechanics, and anyone interested in understanding the dynamics of collisions and pressure in impact scenarios.

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needs help with pressure and work done!

Homework Statement


if a 2 similar rocks are thrown down at different height, one at 100m and 1 at 200m, which one will exert more pressure on the floor?


Homework Equations





The Attempt at a Solution


when i use f=ma, f in both cases are the same as the m and a are the same. since f is the same, pressure should also be the same. however when both rocks hits a can on the ground, the one that is hit by the rock at 200m will get more squash. why? is it because of work done?
 
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it's something related to impulse, momentum, collision... if you have learned these chapters it should be easy enough for you to understand.
 

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