Phy201
Your 'cq_1_9.1' 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 accelerates uniformly as it rolls 20 cm down a ramp, starting from rest, in 2 seconds.
What are its average velocity, final velocity and acceleration?
Vave 10cm/s, Vf 20cm/s, a 10cm/s^2
If the time interval is in error so that it is 3% longer than the actual time interval, then what are the actual values of the final velocity and acceleration?
Vave 10.3cm/s ,Vf 20.6cm/s , a 10.3cm/s^2
What is the percent error in each?
Vave 2.9% , Vf 2.9%, a2.9%
If the percent error is the same for both velocity and acceleration, explain why this must be so.
The precent error is the same cause they are dependent variables of each other
If the percent errors are different explain why it must be so.
same
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15min
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I don't believe you result for velocity and acceleration, assuming a 3% increase in the time interval, are correct. The velocities you would correspond to 3% decrease in the time interval. However the acceleration you give does not correspond to a 3% change in the time interval.
You need to explain how you obtain the results so that the flaw in your reasoning, especially as it relates to the acceleration, can be addressed.
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