Using a stationary block, a bucket of sand, weighing 22 kg, is raised to a height of 5 m. The force applied by

Using a stationary block, a bucket of sand, weighing 22 kg, is raised to a height of 5 m. The force applied by a person to the rope is 240 N: The distance traveled by the end of the rope, for which the person pulls is 5 m. Determine the efficiency of the stationary block.

Task data: h (height of the sand bucket) = 5 m; m (bucket weight) = 22 kg; F (force applied to the rope) = 240 N; S (distance traveled by the end of the rope) = 5 m.

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

To determine the efficiency of the stationary unit used, we use the formula: η = Ap / Az = m * g * h / (F * S).

Calculation: η = 22 * 10 * 5 / (240 * 5) = 0.917 or 91.7%.

Answer: The fixed block used has an efficiency of 91.7%.