Maximum kinetic energy in projectile motion

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SUMMARY

The maximum kinetic energy in projectile motion occurs at two distinct points: the point of projection and the point of return. This conclusion is based on the understanding that velocity is highest at these two points. However, traditional textbooks often state that maximum kinetic energy is only at the point of projection, neglecting the effects of air resistance. The discussion emphasizes the importance of considering drag in real-world scenarios, which can affect the kinetic energy calculations.

PREREQUISITES
  • Understanding of basic physics concepts, particularly kinetic energy and projectile motion.
  • Familiarity with the equations of motion in a gravitational field.
  • Knowledge of the effects of air resistance on moving objects.
  • Ability to analyze parabolic trajectories in physics.
NEXT STEPS
  • Study the equations governing projectile motion, focusing on maximum velocity calculations.
  • Research the impact of air resistance on kinetic energy in projectile motion.
  • Explore advanced topics in fluid dynamics related to drag forces.
  • Learn about energy conservation principles in the context of projectile motion.
USEFUL FOR

Students of physics, educators teaching mechanics, and anyone interested in understanding the dynamics of projectile motion and the effects of air resistance on kinetic energy.

Elena14
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Finding the maximum kinetic energy in a simple parabolic projectile motion requires us to find the maximum velocity. I know that the velocity will be maximum at two points, the point of projection and point of return.

So there must be two points where the kinetic energy is maximum. But my textbook only says it is maximum at the point of projection. Why is that?
 
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Drag.
 
Bystander said:
Drag.
Air resistance has been neglected in the question.
 
Elena14 said:
Air resistance has been neglected in the question.
Then I believe you are right.
Elena14 said:
I know that the velocity will be maximum at two points, the point of projection and point of return.
 

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