Question

In a lever fulcrum is at one end at a distance of 40 cm from the load. Effort is at the other ad
a distance of 80 cm from the load.
(i) Draw the diagram to show the position of fulcrum, load and effort.
(ii) Find the length of load arm.
III) Find the length of effort arm
(iv) Find the mechanical advantage of lever.
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Answer 1

Explanation:

40cm 80cm

1) Load_______ Fulcrum__________Effort.

2) Load arm = 40 cm

3) Effort arm = 80 cm

4) 80/ 40 = 2

:. Mechanical advantage = 2.