An object fell from a 45 meter high balcony with no initial velocity, and was discovered just after

Updated on Balcony 2024-04-20
1 answers
  1. Anonymous users2024-01-23

    h=45m

    h=1/2gt^2 t=(2h/g)^1/2=(2*45/10)^1/2=3s

    Set the uniform acceleration time to t', then the uniform deceleration time is also t'，[(at')/2]*(2t')=18 at'^2=18 a=18/(t'^2)

    When t'The acceleration at =3s 2= is the minimum acceleration: amin=18 (so the condition for acceleration to be met is: 8m s 2.)

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