A 854 g ball is tied to a string. It is pulled to an angle of 8.35° and released to swing as a pendulum. A stu?
A 854 g ball is tied to a string. It is pulled to an angle of 8.35° and released to swing as a pendulum. A student with a stopwatch finds that 12 oscillations take 11.4 s. How long is the string?
More Questions From This User See All
Answers & Comments
Verified answer
The period of a pendulum, in the case of small angle oscillations, is
T = 2π √(L / g)
whence
L = g T² / 4π² = 9.81 x (11.4/12)² / (4 x 3.14²) = 0.224 m = 22.4 cm