phy 201
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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: an object freely falling ignoring air resistance will fall at aVae = 9.8m/s^2 from accel. Due to gravity.
V0 = 0 vf = 6.272m/s, vave = 3.125m/s
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: vAve 5m/1.05sec = 4.76 m/s
No, its vAve is not the same.
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 one is because when you square its vAve it equals 9.8 however the sec. velocity is not.
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10min
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You calculated average velocities, but you didn't calculate accelerations.
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