The crane lifts a 10,000 kg load to a height of 2 m in 10 seconds. Determine the power of the crane.
| September 18, 2021 | education
Let us determine the work that the crane does when lifting the load according to the formula
A = F * S,
where
A – work;
F – strength;
S is the path.
The load is suspended vertically, which means
F = P * g = 10,000 * 9.8 = 98,000 N;
A = 98000 * 2 = 196000 J.
Crane power
N = A / T = 196000/10 = 19600 W = 19.6 kW.
Answer: the power of the crane is 19.6 kW.
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