Calculating Force in a Human Cannonball Act: How Is It Done?

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SUMMARY

The discussion centers on calculating the average net force exerted on a 72 kg human cannonball during a circus performance, where the cannon length is 18 meters and the time spent in the cannon is 0.95 seconds. Using the formula f=ma, the participant calculated an acceleration of approximately 40 m/s², resulting in a net force of about 2900 N. This calculation is confirmed as correct, demonstrating a solid understanding of the physics involved in the scenario.

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  • Understanding of Newton's Second Law (f=ma)
  • Familiarity with kinematic equations
  • Basic knowledge of mass and acceleration concepts
  • Ability to perform unit conversions and calculations
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  • Learn about force analysis in different physical contexts
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This discussion is beneficial for physics students, educators, and anyone interested in the mechanics of motion, particularly in the context of performance arts and engineering applications.

asianygoodnes
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Homework Statement


During a circus performance a 72 kg human cannonball is shot out of an 18m long cannon. If the human cannonball spends .95 s in the cannon, determine the average net force exerted on him in the barrel in the cannon.


Homework Equations



f=ma
x=v0t + 1/2 at^2 (?)

The Attempt at a Solution



So i solved for acceleration using the kinematics equation, assuming that v0=0
i got approximately 40 m/s^2 and multiplied that by the mass of the man
I got about 2900 N. Is this a good answer? Or did I confuse myself, as usual, when it comes to physics.
 
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Your solution is correct.

ehild
 

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