Answer
According to the exercise 42, the 66.67 cm mark will fall with acceleration equal to g. Below that mark, the acceleration is less than g, and above that mark, the acceleration is more than g.
Hence, the pennies at marks 10, 20, 30, 40, 50 and 60 will be slowed.
And the pennies at marks 70, 80, 90 and 100 will separate and fall with acceleration equal to g.
Work Step by Step
According to the exercise 42, the 66.67 cm mark will fall with acceleration equal to g. Below that mark, the acceleration is less than g, and above that mark, the acceleration is more than g.
Hence, the pennies at marks 10, 20, 30, 40, 50 and 60 will be slowed.
And the pennies at marks 70, 80, 90 and 100 will separate and fall with acceleration equal to g.
