Your 'cq_1_01.1' 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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• If the position of a ball rolling along a track changes from 10 cm to 20 cm while the clock time changes from 4 seconds to 9 seconds, what is the average rate of change of its position with respect to clock time during this interval?
o (20 cm – 10 cm) / (9 seconds – 4 seconds) = 2 cm/s
o Quantity A Quantity B Average rate of change
• If the velocity of a ball rolling along a track changes from 10 cm / second to 40 cm / second during an interval during which the clock time changes by 3 seconds, then what is the average rate of change of its velocity with respect to clock time during this interval?
o (40 cm/s -10 cm/s) / (3 s) = 10 cm/s/s (Average rate of change)
o Quantitiy A Quantity B
• If the average rate at which position changes with respect to clock time is 5 cm / second, and if the clock time changes by 10 seconds, by how much does the position change?
o (5cm/s) * (10s) = 50 cm (Average rate of change)
o Quanity A Quantity B
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30 min
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&#Very good work. Let me know if you have questions. &#