Question

if the length of a rigid bar is 150cm and the pivot is placed 70cm from the effort what is the load distance

Answer 1

Answer:The cowbar is a class I lever .

therefore fulcrum is situated in between the load and effort.

load arm = 20 cm

effort arm = 120 - 20 cm = 100 cm

MA = effort arm/load arm

= 100/20

= 5

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