Question

what is effort arm ?​

Answer 1

Answer:

Effort arm is the part of the lever to which force is applied

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Answer 2

A level is a rigid bar with three parts :the fixed point around which the bar pivots is the fulcrum;the effort arm(in-lever arm) is the part of the lever to which force is applied;the resistance arm(out-lever arm) is the part that bears the load to be moved