Projectile Motion: Initial Speed and Maximum Height Calculations

AI Thread Summary
A vertically moving projectile reaches a maximum height of 50 meters, prompting questions about its initial speed and height at 3.3 seconds. Participants emphasize the importance of using kinematic equations to solve these problems, as well as understanding the principles of motion. There is a discussion about the confusion surrounding kinematic formulas and their application. A hint is provided to consider what the object possesses at its peak height compared to its starting point. The conversation highlights the need for clarity on acceleration and the relevance of specific kinematic equations in solving projectile motion problems.
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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