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PHY201
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A ball falls freely from rest at a height of 2 meters. Observations indicate that the ball reaches the ground in .64 seconds.
Based on this information what is its acceleration?
answer/question/discussion: ->->->->->->->->->->->-> :
vAve= 2/.64=3.125m/s
'ds=3.125*.64 = 2 meters
How can you get a if you don't have a v0 or a vf?
The ball falls from rest, so you know v0. It's zero.
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Is this consistent with an observation which concludes that a ball dropped from a height of 5 meters reaches the ground in 1.05 seconds?
answer/question/discussion: ->->->->->->->->->->->-> :Don't know
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Are these observations consistent with the accepted value of the acceleration of gravity, which is 9.8 m / s^2?
answer/question/discussion: ->->->->->->->->->->->-> :Don't know
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30 minutes
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I don't understand how to get a if you don't have vf or v0
See my note and give it another try.
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