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Three horizontal forces the only horizontal ones act on a

Three horizontal forces (the only horizontal ones) act on a box sitting on a floor. One (call it F1) acts due east and has a magnitude of 150 lb. A second force (call it F2) has an easterly component of 30.0 lb and a southerly component of 40.0 lb. The box remains at rest. (Neglect friction.)

(a) Sketch the two known forces on the box. In which quadrant is the unknown third force: (1) the first quadrant; (2) the second quadrant; (3) the third quad-rant; or (4) the fourth quadrant?

(b) Find the unknown third force in newtons and compare your answer to the sketched estimate.

(a) Sketch the two known forces on the box. In which quadrant is the unknown third force: (1) the first quadrant; (2) the second quadrant; (3) the third quad-rant; or (4) the fourth quadrant?

(b) Find the unknown third force in newtons and compare your answer to the sketched estimate.

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