Solve the problem.
-A pendulum bob swings through an arc 80 inches long on its first swing. Each swing thereafter, it swings only 86% as far as on the previous swing. What is the length of the arc after 11 swings? Round to two
Decimal places.
A)17.70 inches
B)15.23 inches
C)13.09 inches
D)688.00 inches

Question

Quizplus · Accepted Answer

The length of the arc after 11 swings is 17.70 inches.The length of the arc after each swing is 86% of the length of the arc on the previous swing. So, the length of the arc after 11 swings is 0.86^11 * 80 = 17.70 inches.

Solve the Problem. -A Pendulum Bob Swings Through an Arc 80 Inches Long