Q

A 300 N load is 0.2 m from the fulcrum. The effort is applied 0.6 m from the fulcrum. For balance, effort is:

✓ Answer: B 100 N
Using the principle of moments: Effort × effort arm = Load × load arm. E × 0.6 = 300 × 0.2 = 60, so E = 100 N.
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