The lever is used to lift a concrete block with a mass of 1 t by 5 cm. The other end of the arm travels a distance of 20cm.
| December 2, 2020 | education
The lever is used to lift a concrete block with a mass of 1 t by 5 cm. The other end of the arm travels a distance of 20cm. What force was applied to the lever?
decision
A = F * l
F1 * l1 = F2 * l2
F1 = 1000 * 10 N
l1 = 0.05 m
l2 = 0.2 m
F2 – Find
from expression above
F2 = F1 * l1 / l2
Substituting given and counting
F2 = 2500 N
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