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A force of 5 kgf is required to cut a metal sheet. A shears used for cutting the metal sheet has its blades

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A force of 5 kgf is required to cut a metal sheet. A shears used for cutting the metal sheet has its blades 5 cm long, while its handles is 10 cm long. What effort is needed to cut the sheet?

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Effort arm = 10 cm

Load arm = 5 cm

Mechanical advantage = M.A = Effort arm/Load arm = 10/5 = 2

Load = 5kgf

Effort = Load/M.A = 5/2 = 2.5 kgf

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