PHYSICS

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The observation deck of tall skyscraper 370 m above the street. Determine the time required for a penny to free fall from the deck to the street below.

  • PHYSICS -

    Assuming free-fall without air-resistance, then use
    S=ut+(1/2)gt²
    where S=370m, u=initial velocity=0
    Solve for t:
    370=(1/2)(9.81)t²
    It should come out to about 8.5 or 8.6 seconds

  • PHYSICS -

    7.55

  • PHYSICS -

    The observation deck of tall skyscraper 370 m above the street. Determine the time required for a penny to free fall from the deck to the street below.

  • PHYSICS -

    v0…5-u0…5=2as
    (0)0…5-(u)0…5=2(-9.8)(370)
    u=85.15

    v=u at
    o=85.15 (-9.8)(t)
    -85.15=(-9.8)t
    8.6s= t

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