Review To use the conditions of equilibrium to solve for unknown forces in a three-dimensional force system. Part A For particle equilibrium, the sum of all forces must be Four forces are shown: F1, F2, F3, and F4. (Figure 1) Classify the x, y, and z components of each vector as being less than zero, equal to zero, or greater than zero. zero: ΣF-0 If the forces are resolved into their i, j, and k components, the condition for equilibrium becomes Drag the appropriate items to their respective bins. ΣΕi+ΣFj +ΣFk = which results in the following three scalar component equations that can be used to solve for unknowns: Reset Help EF: = 0 EF, = 0 ΣΕ-0 Figure 1 of 1> Less than zero Equal to zero Greater than zero F2 Fax Fay Fax Fay F22 Fax Fiz]Fay Faz Fax Fay y F4

Review To use the conditions of equilibrium to solve for unknown forces in a three-dimensional force system. Part A For particle equilibrium, the sum of all forces must be Four forces are shown: F1, F2, F3, and F4. (Figure 1) Classify the x, y, and z components of each vector as being less than zero, equal to zero, or greater than zero. zero: ΣF-0 If the forces are resolved into their i, j, and k components, the condition for equilibrium becomes Drag the appropriate items to their respective bins. ΣΕi+ΣFj +ΣFk = which results in the following three scalar component equations that can be used to solve for unknowns: Reset Help EF: = 0 EF, = 0 ΣΕ-0 Figure 1 of 1> Less than zero Equal to zero Greater than zero F2 Fax Fay Fax Fay F22 Fax Fiz]Fay Faz Fax Fay y F4