a lever has MA of 30 and VR 3.5 ,if the effort 3.5N. Calculate : 1. The load.
2. Efficiency
To calculate the load and efficiency of a lever, we need to use the formulas for mechanical advantage (MA) and efficiency.
1. The load can be calculated using the formula:
Load = Effort x MA
Given that the Effort (E) is 3.5N and MA is 30, we can substitute these values into the formula:
Load = 3.5N x 30 = 105N
Therefore, the load in this case is 105 Newtons.
2. Efficiency (η) can be calculated using the formula:
Efficiency = (Load / Effort) x 100
We have already calculated the load (105N) and given the Effort (3.5N). Substituting these values into the formula:
Efficiency = (105N / 3.5N) x 100 = 3000%
Therefore, the efficiency in this case is 3000%.