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joeybelles
joeybelles asked in Science & MathematicsPhysics · 8 years ago

About physics .please help:))?

An 18.00-g object falls from rest through a distance of 4.00 m. If gravity alone is present, what will be the final velocity of the object? (Neglect air resistance.)

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  • LBT “Moonlight”
    Lv 6
    8 years ago
    Favorite Answer

    V^2 (final) = V^2 (initial) + 2gh

    Vinitial = 0

    Vfinal = (2 * 9.8 m/s^2 * 4 m)^ 1/2

    Vfinal = 8.854 m/s

    Source(s): solved
  • ?
    Lv 7
    8 years ago

    V = √2gh = √(2)(9.81)(4.00) = √78.48 = 8.86 m/s ANS

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