Projectile Motion Help: Finding Time, Angle, and Velocity

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SUMMARY

The discussion centers on solving a projectile motion problem involving a particle that takes off from an elevation of 1.02m, reaches a maximum height of 1.85m, and lands at 0.930m. Participants emphasize the need to apply kinematic equations, specifically V = Vi + at and d = di + Vi*t + 0.5*a*t^2, to determine the time of flight, take-off angle, and initial velocities. The lack of horizontal motion data complicates the analysis, as horizontal velocity remains undetermined without additional information.

PREREQUISITES
  • Understanding of kinematic equations in physics
  • Familiarity with projectile motion concepts
  • Knowledge of vertical and horizontal velocity components
  • Basic grasp of gravitational acceleration (9.81 m/s²)
NEXT STEPS
  • Study the derivation and application of kinematic equations in projectile motion
  • Learn how to resolve velocity into vertical and horizontal components
  • Research methods to calculate time of flight in projectile motion scenarios
  • Explore the impact of launch angles on projectile trajectories
USEFUL FOR

Students studying physics, educators teaching projectile motion, and anyone seeking to understand the dynamics of objects in motion under the influence of gravity.

pberardi
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Homework Statement



Help with projectile motion please?
A particle is at an elevation of 1.02m from the floor when it takes off. It reaches a max height of 1.85m above the floor and stops at .930m above the floor. How do you find the time of flight, the take off angle, the initial vertical and horizontal velocity?

Homework Equations





The Attempt at a Solution



I have no idea how to start this without a given angle. Can someone explain this concept to me?
 
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pberardi said:
A particle is at an elevation of 1.02m from the floor when it takes off. It reaches a max height of 1.85m above the floor and stops at .930m above the floor. How do you find the time of flight, the take off angle, the initial vertical and horizontal velocity?

I have no idea how to start this without a given angle. Can someone explain this concept to me?

All the info given is vertical. So I don't see any way to address any horizontal or angle of launch issues.

For the time, you can figure that by relating distance gravity and time.

Here are some equations:
https://www.physicsforums.com/showpost.php?p=905663&postcount=2
 
No horizontal information is given, so the horizontal velocity could be anything!
The vertical part can be worked out with the usual formulas V = Vi + at and d = di + Vi*t + .5*a*t^2 for accelerated motion. Or even more easily with that formula that has no t in it.
 

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