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The following data table gives the position of an object during freefall. The time interval between adjacent points is 1/60 seconds.
Point
Position(cm)
1
70.77
2
68.56
3
66.09
4
63.34
5
60.32
6
57.02
7
53.46
8
49.62
9
45.51
10
41.12
What is the instantaneous velocity of the object when it is at position 3?
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