12.5 (see book for picture)The 40lb block starts from rest and moves upward when constantforces of..

12.5 (see book for picture)The 40lb block starts from rest and moves upward when constantforces of 10lb and 20lb are applied to supporting ropes. Neglectingthe masses of the pulleys and theeffect of friction, determine thespeed of the block after it has moved 1.5ft.Thanks!!

 

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