Question

Part A A 255 g ball is tied to a string. it is puled to an angle of 7.60° and released to swing as a pendulum. A student with a stopwatch finds that 12 oscillations take 12.0 s. How long is the string? Express your answer in centimeters. cin Submit Request Answer

Answer 1

Here ,

let the string length is L

m = 0.255 Kg

T = 12 s

Time period , T = 2pi * sqrt(L/g)

12/12 = 2pi * sqrt(L/9.8)

solving for L

L = 0.25 m

the length of pendulum is 0.25 m