Three horizontal forces (the only horizontal one) act on a box sitting on a floor. One force (F1) acts due east and has a magnitude of 150 lb. A second force (F2) has an easterly component at 30.0 lb and a southerly component at 40.0 lb. The box remains at rest. Sketch the two known forces on the box. Find the unknown third force in newtons.
physics - lynn, Saturday, February 16, 2013 at 8:34am
The figure shows two forces acting at right angles on an object. They have magnitudes F1 = 6.3 N and F2 = 2.1 N. What third force will cause the object to be in equilibrium (acceleration equals zero)?