How Do You Calculate the Initial Velocity of a Projectile?

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SUMMARY

The initial velocity of a projectile thrown at a 45-degree angle that lands 90 meters away can be calculated using kinematic equations. The discussion emphasizes the importance of breaking down the motion into its x and y components to solve for the initial velocity. By applying the appropriate equations of motion, one can derive the necessary calculations to determine the initial velocity accurately.

PREREQUISITES
  • Kinematic equations of motion
  • Understanding of projectile motion
  • Vector decomposition into x and y components
  • Basic algebra for solving equations
NEXT STEPS
  • Study the kinematic equations for projectile motion
  • Learn how to decompose vectors into components
  • Practice calculating initial velocity using different angles
  • Explore the effects of air resistance on projectile motion
USEFUL FOR

Students in physics, educators teaching projectile motion, and anyone interested in understanding the principles of kinematics and vector analysis.

TWM
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A ball is thrown at a 45 degree angle and lands 90 meters away. What was the intial velocity?

Tanner
 
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Offhand, I don't know. Read the rules of the forum. Write down some kinematical equations and explain what's confusing you about the question. Split the motion into x and y components.
 

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