When an eastic mediurs is oscillaing maaimum potestial energ

When an eastic mediurs is oscillaing maaimum potestial energy occurs at wbal positiot ef displacement betwem and the equilibrium point Pnast information given loanswer 7 work agProNemesbow all your werk, don\'t fret mitt swinging a keychain (i kg) around the of lanyard. notices it nala revolutions in one minute. What is the centripetal force ofse keys? 2 to N 10 convert to veu es ev rad Isec We need to get Velocity V w r 85red 2n rad 8 go red I rew loose LU 15)

Solution

Given

angular Velocity

W=13 rev/sec

1 rev/sec =2pi rad/s

W=13*2pi =81.68 rad/sec

Centripetal acceleration

a_c=W²R =81.68²*0.15

a_c=1000 m²/sec

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