SOLUTION: A ball on a pendulum moves 40 cm on its first swing.On each succeeding swing back or forth it moves 90% of the distance of the previous swing.Write the first fou

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Question 329469: A ball on a pendulum moves 40 cm on
its first swing.On each succeeding swing back or
forth it moves 90% of the distance of the previous
swing.Write the first four terms of the sequence
of swing lengths.

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
D1=40 cm
D2=40%280.9%29=36 cm
D3=36%280.9%29=40%280.9%29%5E2=32.4 cm
D4=32.4%280.9%29=40%280.9%29%5E3=29.16 cm
D5=29.16%280.9%29=40%280.9%29%5E4=26.244 cm