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Homework Statement:
 the pliers shown are used to grip a 0.3in.diameter rod. knowing that two 60lb forces are applied to the handles, determine (a) the magnitude of the forces exerted on the rod, (b) the force exerted by the pin at a on portion ab of the pliers.
Relevant Equations:
 3 reaction equation
I know that moment is distance vector x force vector x the degree between them. I understand it uses the moment about A to solve for the unknown force R. I don’t understand why it use Rx1.2m and why the perpendicular distance between A and R is 1.2m.
could anyone please explain why?
Many thanks for your time answering
could anyone please explain why?
Many thanks for your time answering
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