Question

A crowbar of length 10 m has a fulcrum at a distance of 4 m from one end calculate the effort required to lift the load of 120n​

Answer 1

The effort required to lift the load of 120 N is  80 N.

Explanation:

Given data:

Distance of fulcrum "d" = 4 m

Length "l" = 10 m

Solution:

Force1  x distance1 = Force2 x distance2

120 N x 4 m = F x (10 - 4)

480 = F x 6

F = 480/6 = 80 N

Thus the effort required to lift the load of 120 N is  80 N.

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Answer 2

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