From what height did the apple fall if, upon impact of 0 to the ground, it had a speed of 5 m / s.

To calculate the height at which the apple in question was before falling, we will use the formula: S = h0 = (V ^ 2 – V0 ^ 2) / 2a = V ^ 2 / 2g.

The values of the variables: V is the speed of the apple upon impact (V = 5 m / s); g – acceleration due to gravity (g ≈ 10 m / s2).

Calculation: h0 = V ^ 2 / 2g = 5 ^ 2 / (2 * 10) = 1.25 m.

Answer: Before the fall, the apple in question was at a height of 1.25 m.