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**what happends when we oscillate three pendulums next to each other??**

## Homework Statement

if we have three pendula hanging from one string...and each of them separated by 5 cm, and each pendulum has same amount of mass hanging from it,, but the first two pendulums are 2.0 m long and the third one is 2.5 m long... if i set the first 2.0 m long pendulum to oscillate what will happened to the other two? please give me some hints or full answer

## Homework Equations

we don't use equations but we can think about the different heights of each pendulum

## The Attempt at a Solution

i would think once you start oscillating the first pendulum, it will moeve and strt oscillating the 2nd pendulum which are both of same height, but nothing will happened to the third pendulum, it will have no motion