madisonjmitchel
Answered

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A rock dropped down a well takes 2.5 seconds to hit the water. How far below the
top of the well is the surface of the water? [Answer to 1 decimal place)

Sagot :

MathPhys

Answer:

30.6 m

Explanation:

Given:

v₀ = 0 m/s

a = 9.8 m/s²

t = 2.5 s

Find: Δy

Δy = v₀ t + ½ at²

Δy = (0 m/s) (2.5 s) + ½ (9.8 m/s²) (2.5 s)²

Δy = 30.6 m

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