A stone is dropped from a height of 32.4m above the ground. Calculate the velocity of this object when it reaches the ground.(adsbygoogle = window.adsbygoogle || []).push({});

the step by step ans key shows that acceleration is -9.81m/s^2. y is it neg? is it bc the object is going downwards(neg direction)? if that's the case, then y in this question pos acceleration is used?:

A large steel ball is dropped from a height of 7.00m above the floor. What is the velocity that the object will strike the floor?

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# Homework Help: Acceleration calculation help

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