Question

the length of a lever is 4 metre calculate the mechanical advantage of the lever if its for fulcrum is located at a distance of 120 cm from the effort ​

Answer 1

Answer:

Length of the lever 2m = 200 cm. Length of the effort arm 40 cm

Length of the load arm 200 cm — 40 cm =160cm

Mechanical advantage ?

We know that, Mechanical advantage = Length of effort arm Length of load arm

$ma \: = \: \frac{40 \: cm}{160 \: cm} = 0.25$

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