Calculating Speed of Dropped Baseball Using Conservation of Energy Method

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The discussion focuses on calculating the speed of a 145g baseball dropped from a height of 13.0m using the conservation of energy method. The initial energy (Ei) is potential energy, calculated as mgh, where m is mass, g is gravitational acceleration (9.81 m/s²), and h is height. The final energy (Ef) is kinetic energy, expressed as 0.5mv². By equating the initial and final energies, the speed of the baseball just before impact can be determined using the formula v = √(2gh).

PREREQUISITES
  • Understanding of potential energy and kinetic energy concepts
  • Familiarity with the conservation of energy principle
  • Basic knowledge of algebra for solving equations
  • Knowledge of gravitational acceleration (9.81 m/s²)
NEXT STEPS
  • Calculate potential energy using the formula PE = mgh
  • Derive the kinetic energy formula and its application in real-world scenarios
  • Explore the effects of air resistance on falling objects
  • Study advanced topics in mechanics, such as energy conservation in elastic and inelastic collisions
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Students studying physics, educators teaching mechanics, and anyone interested in understanding the principles of energy conservation in motion.

Trecero
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Please help! Physics Qyestion!

1. A 145g baseball is dropped from a tree 13.0m above the ground. Using a conservation of energy method, find the speed of the ball just as it hits the ground. Ignore air resistance.



2. Sum Of Ei = Sum Of Ef. That is about as far as i got.



3. I don't know where to start!
 
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Can you find expressions for the initial and final energies? What is each term the sum of?
 


Ok thanks i got it now!
 

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