Physics Learning Object

1. Vertical OscillationsinRunners
Please view video: https://www.youtube.com/watch?v=DVLTm7T5pj4
Say the runnerwere standingatrest,we couldsay that theyare inequilibrium.Assoonasthe runner
starts to run,and bounceshighduringtheirstride,the runnerisoscillatingverticallyabouttheir
equilibriumposition,howevertheycannotgolowerthanthe ground,therefore theyare appliedhigh
impactas theirfeetfall tothe ground.Furthermore,withhigheroscillations,more energyisexpended
to overcome gravityandboundhigher.Runningwithoutasmuchbounce,or withlessvertical
oscillation,canleadtolesswastedenergyperdistancetravelled,aswell aslessimpactonjointswhile
running.