Can AP Shell Pierce 2 Steel Plates? | Work Questions

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SUMMARY

The discussion centers on whether an Armor Piercing (AP) Shell can penetrate two steel plates given its initial speed of 1800 m/s and a reduced speed of 1200 m/s after piercing the first plate. Participants emphasize the need to calculate the kinetic energy (Ek) using the formula Ek = 1/2 mv² to determine if the remaining energy is sufficient to pierce the second plate. The consensus is that the speed reduction per piercing is not necessarily fixed at 600 m/s, and further calculations are required to establish the outcome definitively.

PREREQUISITES
  • Understanding of Kinetic Energy (Ek) calculations
  • Familiarity with the physics of projectile motion
  • Basic knowledge of material properties of steel
  • Ability to apply conservation of energy principles
NEXT STEPS
  • Calculate the Kinetic Energy of the AP Shell before and after piercing the first plate
  • Research the material properties of steel to determine penetration thresholds
  • Explore the effects of speed reduction on projectile performance
  • Learn about ballistic testing methodologies for armor-piercing projectiles
USEFUL FOR

This discussion is beneficial for physicists, engineers, military personnel, and anyone interested in ballistics and armor penetration dynamics.

Die4Physics
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About Work Questions!

With the initial speed of 1800ms-1, AP(Armor Piercing Shell) after piercing through the 1st steel plate its speed is 1200ms-1. Can it pierces through the second steel plate? I know what you mean but the problem I encounter is I am not sure whether the speed will reduce by 600ms-1 every piercing? And I don't know how can i show that it can or it can't pierces through the 2nd steel plate? On my understanding this is a horizontal motion so there wouldn't be any Ep. There will only be Ek and with the formula Ek=1/2mv2 how i can show will it pierces through the 2nd plate.
Your help will be much appreciate!
Thank you!
 
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Please show your work... we on PF can't just help without you working out on your own as per the rules.
 

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