Find the final speed of an icicle during free fall from the roof of a house 20 m high.

univerkov | May 28, 2021 | education

These tasks: free icicle fall (V0 (initial velocity) = 0 m / s); h (height of the icicle fall, distance traveled) = 20 m.

Reference values: g (acceleration due to gravity) ≈ 10 m / s2.

We express the final speed of the considered icicle from the formula: H = S = V ^ 2 / 2g, whence V = √ (2g * H).

Let’s calculate: V = √ (2 * 10 * 20) = 20 m / s.

Answer: The final speed of the considered icicle will be equal to 20 m / s.

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