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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

Respuesta :

MathPhys

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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