The rope pulling force when lifting the elevator is equal to 40,000 N. What work does the engine
February 8, 2021 | education
| The rope pulling force when lifting the elevator is equal to 40,000 N. What work does the engine do when lifting the elevator to a height of 25m.
To calculate the work done by the motor used when lifting the elevator, we apply the formula: A = F * S = T * h.
Values of variables: T – rope tension force (T = 40,000 N = 40 * 10 ^ 3 N); h – lift height (h = 25 m).
Let’s make a calculation: A = T * h = 40 * 10 ^ 3 * 25 = 1 * 10 ^ 6 J = 1 MJ.
Answer: The motor used when lifting the elevator should have done a work of 1 MJ.
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