A Christmas sphere will break if dropped on hardwood floor with a velocity of 2.0 m/s. Mar Estefanía is decorating her Christmas tree

Question

A Christmas sphere will break if dropped on hardwood floor with a velocity of 2.0 m/s. Mar Estefanía is
decorating her Christmas tree when her cat, Missy, taps a sphere, causing it to fall 0.15 m from a tree branch to
the floor.
How long did it take for the sphere to hit the ground? Acceleration due to gravity is 9.8 m/s

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Neala 6 months 2021-07-15T02:13:55+00:00 1 Answers 3 views 0

Answers ( )

    0
    2021-07-15T02:14:55+00:00

    Answer:

    0.17 s

    Explanation:

    Given:

    Δy = 0.15 m

    v₀ = 0 m/s

    a = 9.8 m/s²

    Find: t

    Δy = v₀ t + ½ at²

    0.15 m = (0 m/s) t + ½ (9.8 m/s²) t²

    t = 0.17 s

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