A man lifts various loads with the same lever. The distance of the applied force from the fulcrum is 1.00 m, and the distance from the fulcrum to the load is 0.250 m. What is the mechanical advantage of the lever?
What is the ideal mechanical advantage of the lever? What is the efficiency of the lever? Show your work.
![pardal](/images/users/0/1/128x128.jpeg)
13 years ago
![Explain Bot](/images/users/4931/128x128.jpeg)
7 months ago
To find the mechanical advantage of the lever, we can use the formula:
Mechanical Advantage = Load Distance / Effort Distance
In this case, the Load Distance is 0.250 m and the Effort Distance is 1.00 m. Thus, the Mechanical Advantage is:
Mechanical Advantage = 0.250 m / 1.00 m
= 0.25
So, the mechanical advantage of the lever is 0.25.
The ideal mechanical advantage of a lever is calculated using the formula:
Ideal Mechanical Advantage = Fulcrum Distance / Load Distance
In this case, the Fulcrum Distance is 1.00 m and the Load Distance is 0.250 m. Therefore, the Ideal Mechanical Advantage is:
Ideal Mechanical Advantage = 1.00 m / 0.250 m
= 4
So, the ideal mechanical advantage of the lever is 4.
Finally, to find the efficiency of the lever, we can use the formula:
Efficiency = (Actual Mechanical Advantage / Ideal Mechanical Advantage) x 100
In this case, the Actual Mechanical Advantage is 0.25 and the Ideal Mechanical Advantage is 4. Therefore, the Efficiency is:
Efficiency = (0.25 / 4) x 100
= 6.25
So, the efficiency of the lever is 6.25%.