Where Would a Wooden Ball Accelerate When Thrown Up and Then Let Fall Down?

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SUMMARY

The discussion centers on the acceleration of a wooden ball thrown upwards one meter and then allowed to fall down to a negative meter. The consensus is that the ball experiences constant acceleration due to gravity (approximately 9.81 m/s²) throughout its flight, except when held or when the ground exerts a normal force, resulting in a net force of zero. The key takeaway is that gravity continuously acts on the ball, ensuring non-zero acceleration while it is in free fall.

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Homework Statement


If you were to throw a wooden ball up one meter and then let it fall down to a negative meter, where would it accelerate?


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The Attempt at a Solution

 
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All the way down.
Gravity always acts on it, so as long as it is in the air it has non-zero acceleration a = Fgrav/m.
Only when you hold it (straining your muscles to do so) or letting the ground exert a normal force, you can cancel it such that the net force is zero hence a = 0..
 

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