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Average Velocity and Distance

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1) Two ants race across a table that is 72.5 cm long. One travels at 4.02 cm/s and the other at 2.7 cm/s. When the first one crosses the finish line, how far behind is the second one? Answer in units of cm.

2) The position of a car coasting down a hill was observed at various times and the results are summarized in the table below.

Time Distance
0s 0.43m
1s 1.6m
2s 12.8m
3s 21.5m
4s 33.9m
5s 54.5m

a) Find the average velocity of the car during the first second. Answer in m/s.
b) Find the average velocity of the car during the last three seconds. Answer in m/s.
c) Find the average velocity of the car during the entire period of observation in m/s.

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Solution Summary

This solution provides the calculations necessary to derive the final answers for each part of these physics based problems. All answers are given in the appropriate units.

Solution Preview

1. Time taken by 1st ant = 72.5/4.02 = 18 sec.
Distance traveled by 2nd ant in 18 sec = ...

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