Determine how high the 15.6 W motor lifts a 3 kg load in 23 seconds.

To determine the height to which the used engine will be able to lift the part, we use the formula (the lift will be considered uniform): N = A / t = m * g * h / t, from where we express: h = N * t / (m * g).

Constants and variables: N – engine power (N = 15.6 W); t is the duration of lifting the part (t = 23 s); m is the mass of the part (m = 3 kg); g – acceleration due to gravity (g ≈ 9.8 m / s2).

Calculation: h = N * t / (m * g) = 15.6 * 23 / (3 * 9.8) = 12.2 m.

Answer: The engine used will be able to lift the part 12.2 m.