What work was done when lifting a load weighing 0.5 kg to a height of 4 m?
| April 28, 2021 | education
To find the amount of work done when lifting the specified load, you must use the formula: A = Ft * S = mg * g * h.
Data: mg – weight of the specified cargo (mg = 0.5 kg); g – acceleration due to gravity (g ≈ 10 m / s2); h – change in the height of the load, path (h = 4 m).
Calculation: A = mg * g * h = 0.5 * 10 * 4 = 20 J.
Answer: B. The work expended when lifting the specified load is 20 J.
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