#$&*
phy 201
Your 'cq_1_07.1' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
** CQ_1_07.1_labelMessages **
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: ->->->->->->->->->->->-> :
2/.64 = 3.125 m/s
3.125 = 0 + a x .64
a = 4.88m/s/s
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You haven't calculated the acceleration correctly. Your 3.1 m/s is the average velocity, not the final velocity.
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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: ->->->->->->->->->->->-> :
No - 5 / 1.05 = 4.76m/s
4.76 = 0 + a x 1.05
a = 4.53m/s/s
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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: ->->->->->->->->->->->-> :
No
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*#&!
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You'll need to recalculate your accelerations. Neither is correct, but both should be easy and quick to revise.
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