When lifting a load on an inclined plane with an efficiency of 50% to a height of 2 m, a work of 19,600 J
| August 10, 2021 | education
When lifting a load on an inclined plane with an efficiency of 50% to a height of 2 m, a work of 19,600 J was performed. Determine the mass of the lifted load.
Data: η (inclined plane efficiency) = 50% (0.5); h (lifting height) = 2 m; Az (perfect (expended) work) = 19600 J.
Constants: g (acceleration due to gravity) ≈ 10 m / s2.
To calculate the mass of the load lifted along an inclined plane, we apply the formula: η = Ap / Az = m * g * h / Az, whence m = Az * η / (g * h).
Calculation: m = 19600 * 0.5 / (10 * 2) = 9800/20 = 490 kg.
Answer: A 490 kg load was lifted along an inclined plane.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.
