Solve the problem.
-A pendulum swings through an arc 40 inches long on its first swing. Each swing thereafter, it swings only 60% as far as on the previous swing. How far will it swing altogether before coming to A complete stop? If necessary, round to the nearest inch.
A) 100 in.
B) 133 in.
C) 67 in.
D) 50 in.

Question

Quizplus · Accepted Answer

The sum of an infinite geometric series is given by the formula S = a / (1 - r), where a is the first term and r is the common ratio. In this case, a = 40 and r = 0.6. So, the total distance the pendulum will swing is S = 40 / (1 - 0.6) = 100 inches.

Solve the Problem. -A Pendulum Swings Through an Arc 40 Inches Long on Inches