Phy 201
Your 'cq_1_7.1' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
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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.
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Based on this information what is its acceleration?
answer/question/discussion: because the ball is freely fally, gravity is the acceleration: 9.80 m/s^2
Your answer needs to be based on the given information, not on the accepted value of the acceleration of gravity.
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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: yes. everything falls at the same rate
Again you need to base your answer on the given information. That is, you need to calculate the acceleration based on the data, not on an assumption.
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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: yes. neglecting air resistance, everything will fall at the same rate
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5 minutes
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You will need to redo this one. Fortunately you don't have a lot of time invested, and it shouldn't take a long to make corrections. Let me know, though, if you have questions.