Question

6- ft pendulum swings through an angle of 42 ∘

48 ′
. What is the length of the arc that the tip of the pendulum travels? Round intermediate calcula ecimal places. Round your final answer to the nearest hundredth of a foot. The length of the are is approximately ft.

Answer 1

48 ' = .8 deg

Length of pendulum arc = 42.8 / 360 = .11889 of circle

L = 2 π R = 12 * π = 37.699 ft for a complete circle

Arc =.11889 * 37.699 = 4.482 ft