Answer:
Efficiency = 85.5%
Explanation:
Given the following data;
Load = 600N
Effort = 350N
To find the efficiency of the lever, we would first of all determine the mechanical advantage and velocity ratio.
[tex] Mechanical \; advantage = \frac {Load}{Effort} [/tex]
Substituting into the equation, we have;
[tex] Mechanical \; advantage = \frac {600}{350} [/tex]
Mechanical advantage = 1.71
[tex] Velocity \; ratio = \frac {Distance \; moved \; by \; effort}{Distance \; moved \; by \; load} [/tex]
Substituting into the equation, we have;
[tex] Velocity \; ratio = \frac {60}{30} [/tex]
Velocity ratio = 2
Now, to find the efficiency of the lever
[tex] Efficiency = \frac {Mechanical \; advantage}{Velocity \; ratio} * 100 [/tex]
Substituting into the equation, we have;
[tex] Efficiency = \frac {1.71}{2} * 100 [/tex]
[tex] Efficiency = 0.855 * 100 [/tex]
Efficiency = 85.5%
