A crane with a power of 10 kW lifts a load at a speed of 0.1 m / s. Find the weight of the load?

Given: N (power of the crane used) = 10 kW (10 * 10 ^ 3 W); V (the speed with which the load was lifted) = 0.1 m / s.

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

Solution: the mass of the load lifted by the crane is expressed from the following formula: N = F * V = m * g * V, whence m = N / (g * V).

Let’s make a calculation: m = 10 * 10 ^ 3 / (10 * 0.1) = 10 * 10 ^ 3 kg (10 tons).

Answer: The required mass of the lifted load is 10 tons.