PHY 121
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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?
2m / .64s = 3.1m/s
answer/question/discussion: ->->->->->->->->->->->-> :
• 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?
No because 5m / 1.05s = 4.8m/s
answer/question/discussion: ->->->->->->->->->->->-> :
• Are these observations consistent with the accepted value of the acceleration of gravity, which is 9.8 m / s^2?
no
answer/question/discussion: ->->->->->->->->->->->-> :
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15 min.
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Solution
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