Calculate the effort needed when load arm = 50 m, effort arm = 125 m and load = 100 kg wt

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Solution

Step 1, Given data
Load = 100 kg = 1000 N
Load arm = 50 m
Effort arm = 125 m
Step 2, Finding the effort needed
From the principle of the lever
We know,
$E f f o r t \times E f f o r t a r m = L o a d \times L o a d a r m$
Putting all the values
$E f f o r t \times 125 m = 1000 N \times 50 m$
After solving
$E f f o r t = 400 N = 40 k g w t$
Hence the effort needed is 40 kg wt.

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Calculate the effort needed when load arm = 50 m, effort arm = 125 m and load = 100 kg wt

Step 1, Given dataLoad = 100 kg = 1000 N Load arm = 50 mEffort arm = 125 mStep 2, Finding the effort neededFrom the principle of the lever We know,Effort×Effortarm=Load×LoadarmPutting all the valuesEffort×125m=1000N×50mAfter solving Effort=400N=40kgwtHence the effort needed is 40 kg wt.