Introduction Physics: Free Fall problem

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SUMMARY

The discussion centers on calculating the final velocity of divers leaping from a height of 36 meters in Acapulco, Mexico. The relevant equation used is V^2 = u^2 + 2as, where initial velocity (u) is 0 m/s, acceleration (a) is -9.8 m/s², and displacement (s) is -36 m. The correct application of these values leads to a final velocity of approximately 26.8 m/s upon entering the water, resolving the initial confusion regarding the calculations.

PREREQUISITES
  • Understanding of kinematic equations in physics
  • Knowledge of gravitational acceleration (9.8 m/s²)
  • Familiarity with the concept of free fall
  • Ability to manipulate algebraic equations
NEXT STEPS
  • Study the derivation and application of kinematic equations in physics
  • Learn about the effects of air resistance on free fall
  • Explore real-world applications of free fall in sports and engineering
  • Investigate the concept of terminal velocity and its implications
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This discussion is beneficial for physics students, educators, and anyone interested in understanding the principles of free fall and kinematics in real-world scenarios.

Ashford
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Homework Statement


Divers in Acapulco, Mexico, leap from a point 36 m above the sea. What is their velocity when they enter the water?


Homework Equations


V^2=u^2+2as, probably wrong.


The Attempt at a Solution



s=36, u= 0, Find Final Velocity, a= -9.8 , I get some ridiculous number. Don't know how to start the problem.
 
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If the acceleration vector is taken as negative, so too shall the displacement vector, thus you would not have any imaginary number.
 

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