Solve Kinematics Problem: Horizontal Displacement

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SUMMARY

The discussion focuses on solving a kinematics problem related to horizontal displacement. The participant correctly assumed that there is no vertical component of velocity at the lowest point of the ball's trajectory, which is validated by scoring guidelines. They utilized the velocity equations, including the initial velocity equation and the velocity squared equation, to derive the final velocity and subsequently calculate the horizontal displacement. The participant confirmed their calculations with the scoring guidelines, ensuring accuracy in their approach.

PREREQUISITES
  • Understanding of kinematics principles, specifically horizontal and vertical motion.
  • Familiarity with the equations of motion, including velocity and acceleration equations.
  • Ability to interpret and analyze scoring guidelines for physics problems.
  • Basic algebra skills for solving equations related to displacement and velocity.
NEXT STEPS
  • Study the derivation and application of the equations of motion in kinematics.
  • Learn about projectile motion and its components, focusing on horizontal and vertical displacements.
  • Explore the use of scoring guidelines in physics problem-solving to enhance accuracy.
  • Practice additional kinematics problems to reinforce understanding of horizontal displacement calculations.
USEFUL FOR

Students studying physics, particularly those focusing on kinematics, educators teaching motion concepts, and anyone looking to improve their problem-solving skills in physics-related scenarios.

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Homework Statement


I had a problem with e
http://img717.imageshack.us/img717/755/captureso.jpg
http://img34.imageshack.us/img34/1149/capture2vp.jpg

Homework Equations



see below

The Attempt at a Solution



So I assumed that there was no y component of velocity once the ball reaches it's lowest point. I believe this to be a very legit assumption. Even the scoring guidelines made this assumption.

The next thing that I did was use the velocity naught equation below that incorpates the velocity the acceleartion and the time in order to solve for the time

i didn't know the velocit though so i solved it using the equation velocity squared equation that incorporates the velocity naught the acceleration and the displacement which i knew all the terms and solved for the final velocity

i then solved for the time

i was then able to solve for the horizontal displacement sense the step before asked me to solve for the velocity naught in the x direction

The scoring guidelines confirmed my value i used for the horizontal velocity

http://img44.imageshack.us/img44/5169/capturej.jpg
http://img502.imageshack.us/img502/8854/capture2fc.jpg
http://img37.imageshack.us/img37/4259/capture3fo.jpg
http://img686.imageshack.us/img686/9018/captureym.jpg

Homework Statement


Homework Statement



so i really do not see what I'm doing wrong here...
 
Last edited by a moderator:
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Your calculation appears to be correct.
 

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