The shoulders of the lever in balance are 40 cm and 30 cm. A force of 120N is applied
| May 25, 2021 | education
The shoulders of the lever in balance are 40 cm and 30 cm. A force of 120N is applied to the smaller shoulder. What is the force applied to the larger shoulder?
Data: Lb (larger shoulder) = 40 cm; Lm (smaller shoulder) = 30 cm; Fm (force on the smaller arm) = 120 N.
Force on the larger arm: Fb = Fm * Lm / Lb = 120 * 30/40 = 90 N.
Answer: A force of 90 N was applied to the larger arm of the used lever.
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