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PHY 241
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.
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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: ->->->->->->->->->->->-> :
The acceleration is 4.88 m/s^2.
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@& This result is likely obtained by dividing average velocity by change in clock time. That's not how you get acceleration.
You need to indicate the steps of your reasoning. OK to be brief, but i can only guess at the nature of your error. In this case I think I made a good guess, but can't be certain.*@
• 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, the acceleration for this observation is 4.81 m/s^2.
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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, the observations are a little over half of the accepted value.
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*#&!
@& You are correct about the accepted value. However see my note.
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