cq_1_071

Phy 121

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.

** **

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: ->->->->->->->->->->->-> scussion:

.15625 m/s^2

#$&*

*

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: ->->->->->->->->->->->-> scussion:

With a acceleration of 4.54 it is not constant.

#$&*

*

Are these observations consistent with the accepted value of the acceleration of gravity, which is 9.8 m / s^2?

answer/question/discussion: ->->->->->->->->->->->-> scussion:

No they are not.

#$&*

** **

20 mins

** **

You need to indicate how you got your results. In this case they aren't correct, and I can't tell where you went wrong.

&#Please compare your solutions with the expanded discussion at the link

Solution

Self-critique your solutions, if this is necessary, according to the usual criteria. Insert any revisions, questions, etc. into a copy of this posted document. Mark any insertions with &&&& so they can be easily identified. &#