The worker lifts a load weighing 300 N using a block system to a height of 1.5 m, making the robot 500 J. What is the efficiency of the blocks?
These tasks: P (weight of the lifted working load) = 300 N; h (lifting height) = 1.5 m; Az (work done by the worker) = 500 J.
The efficiency of the block system is determined by the formula: η = Ap / Az = P * h / Az.
Calculation: η = 300 * 1.5 / 500 = 450/500 = 0.9 (90%).
Answer: The efficiency of the considered block system is 90%.
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