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Home Q & A Board Science-Related Homework Help High School Level Science
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joshkitty joshkitty
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2 months ago
A construction worker uses a board and log as a lever to lift a heavy rock. If the input arm is 5 meters long and the output arm is 2 meters long, what is the mechanical advantage of the lever?
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colombiano3331colombiano3331
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2 months ago
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The mechanical advantage of a lever is calculated by dividing the length of the input arm by the length of the output arm.

In this case, the mechanical advantage would be:

Mechanical advantage = Input arm length / Output arm length
Mechanical advantage = 5 meters / 2 meters
Mechanical advantage = 2.5

Therefore, the mechanical advantage of the lever is 2.5. This means that the lever allows the construction worker to lift the heavy rock using less force by applying it over a longer distance.
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joshkitty Author
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2 months ago
Helped a lot
prime7105
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Yesterday
Smart ... Thanks!
Mkersey12
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2 hours ago
This helped my grade so much Perfect
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