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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 **
Seed 7 1
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: ->->->->->->->->->->->-> :
dt= .64s
ds= 2 m
vAve=2 m/.64 s
=3.125 m/s
V0= o m/s
Vf=6.25 m/s
Dv=6.25 m/s
aAve= 6.25 m/s/ .64 s
= 9.76 m/s/s
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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: ->->->->->->->->->->->-> :
ds= 5 m
dt= 1.05 s
vAve=4.76
v0=0
vf=9.52
dv=9.52
aAve=9.52m/s/ 1.05 s
=9.07 m/s/s
This is not consistent with 9.8 m/s/s acceleration of gravity
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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: ->->->->->->->->->->->-> :
the first observation is consistent with 9.8 m/s/s
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*#&!
&#Very good responses. Let me know if you have questions. &#