# need help with inclined plane problem

by tricky_tick
Tags: inclined, plane
 P: 6 no message
 HW Helper PF Gold P: 1,198 Work is Force X Displacement. Now Work is minimum when the net force is minimum By drawing the Free Body Diagram for the block, you would arrive at $$0=ma=F - mg \sin \alpha - \mu mg \cos \alpha$$ Differentiating F with respect to alpha and equating to zero you would get the required result

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