Question

In a circus act, when the tumbling lever is measured, the measurements show that the effort arm is 8 meters long and the resistance arm is 2 meters long. The mechanical advantage of the lever is 16. True or False

Answer 1

The statement the mechanical advantage of the lever is 16 is False.

Mechanical Advantage

Mechanical advantage MA = d/D where

• d = distance moved by effort and
• D = distance moved by load

Given that the effort arm is 8 meters long, d = distance moved by effort = 8 m.

Also, given that the resistance arm is 2 meters long, D = distance moved by load = 2 m.

Calculating the mechanical advantage

So, substituting the values of the variables into the equation, we have

MA = d/D

MA = 8 m/2 m

MA = 4

Since MA = 4, so, the stament is False.

So, the statement the mechanical advantage of the lever is 16 is False.

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