Question

Moment Exercise Below is are a set of blocks with a pivot at point P. A force F1 is applied onto the block Each square side corresponds to 0.1m in length (diagonal is 0.14m) The magnitude of the force vector F1 is 3N Case A: Calculate the magnitude of force F2 to keep the block in equilibrium within 10%. Note the magnitude may be positive or negative. F1 P. F21? Case B: Calculate the magnitude of force F2 to keep the block in equilibrium within 10%. Note the magnitude may be positive or negative. F1 P. F2-?
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Cass A: The mement atm(the perpendicnlar dishace framte pivoh e perpen dicular om the piv ase H: to the line of fore«) for Fi is sero. So torwe due to Fi o So, we do not need F2 a nU to keep the blockin e1Ubnum Cose The mament arwm for F,2x(dingonal of uistance quare Magnitude the 0.28 m The moment arm for F2 : 4×( distancede a side of a sqare Magnitude he torgue due to F2 : F2xo-4 Since both Fl & f2 tend to rơtAe the block counter clock wise. To have enuilibriun , we must have total toraue to 3ero

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