What Quantities Are Zero for an Object Launched Parallel to the Ground?

AI Thread Summary
For an object launched parallel to the ground, the initial vertical velocity is indeed zero. The second quantity that is typically considered to be zero is the vertical displacement at the moment of launch. The discussion emphasizes the assumption of neglecting air resistance for simplicity. Understanding these concepts is crucial for solving related physics problems. The focus remains on identifying key quantities in projectile motion.
unknownplaya
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Hello. I have a question on this problem.
What are two quantities of an object launched parallel to the ground which are equal to zero?

I think one of the two is vertical velocity, but I'm not sure.

please help me with this problem. Thank you.:smile:
 
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unknownplaya said:
Hello. I have a question on this problem.
What are two quantities of an object launched parallel to the ground which are equal to zero?

I think one of the two is vertical velocity, but I'm not sure.

please help me with this problem. Thank you.:smile:

Welcome to the PF. You are correct that the initial vertical velocity is zero. What could the second quantity be? I'm guessing that you are to neglect air resistance in this problem?
 
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