The body falls freely from a height of 10 m. What is its speed at a height of 6 m?

The body falls freely from a height of 10 m. What is its speed at a height of 6 m? what is its speed when hitting the ground?

Data: h0 (original height) = 10 m; h1 (considered height) = 6 m.

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

1) Speed at a height of 6 m: Δh = h0 – h1 = V2 / 2g, whence V = √ ((h0 – h1) * 2g) = √ ((10 – 6) * 2 * 10) = 8.94 m / with.

2) Impact velocity: h0 = V2 / 2g, whence V = √ (h0 * 2g) = √ (10 * 2 * 10) = 14.14 m / s.

Answer: At a height of 6 m, the falling body will reach a speed of 8.94 m / s, upon impact – 14.14 m / s.