Projectile Motion: Initial Speed and Maximum Height Calculations

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Homework Help Overview

The discussion revolves around a projectile motion problem involving a vertically moving object that reaches a maximum height of 50 meters. Participants are exploring how to determine the initial speed of the projectile and its height at a specific time of 3.3 seconds.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants are attempting to identify the appropriate kinematic equations to apply, expressing uncertainty about which formulas to use. There is also a focus on understanding the relationship between the object's state at maximum height and its initial conditions.

Discussion Status

The discussion is ongoing, with some participants providing hints and asking for clarification on the original poster's understanding of kinematic equations. There is an acknowledgment of the need for the original poster to articulate their thought process and any specific equations they are considering.

Contextual Notes

Participants note the overwhelming nature of kinematic formulas and question whether the original poster is considering other methods, such as energy concepts, in their approach to the problem.

john stewart
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A vertically moving object projectile reaches a maximum height of 50 meters above its starting position


What is the projectiles initial speed?
What is the height above the starting point at 3.3 seconds?
 
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Hi John. Welcome to Physics Forums.

We ask that you show your attempt at a solution or at least explain why you are having difficulty with the problem.

Please see https://www.physicsforums.com/showthread.php?t=94379
 
I have been overwelmed by all the kenimatic formulas and I'm not sure which one to use or even how to use some of them
 
Ok a hint...

What does the object have at the top that it didn't have at the bottom? Where did it get it from?
 
john stewart said:
I have been overwelmed by all the kenimatic formulas and I'm not sure which one to use or even how to use some of them

So, I assume that you are trying to use kinematic equations to solve the problem rather than energy concepts or some other method. Is this true? If so, can you state any specific kinematic equations that you think might be useful? Is the acceleration constant in this problem?
 

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