A door is 1m wide. It can be closed by an effort of 25 N , when effort is applied at a distance of 0.4 m from the hinge.What effort is needed, if it is applied at its extreme end ?

Dear Student,

Please find below the solution to the asked query:

Suppose the effort will be F newton. So we have
1×f=0.4×25f=10 N

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