Please answer questions 4 and 5 the A 10 N D 80 N Following

the A. 10 N D. 80 N Following figure for 4. & 5. 50 Nm B. 100 Nm C. 200 Nm D. 0 Nm A. 0 Nm B. 200 Nm C. 50 Nm 0.5m 100N

Solution

4. The perpendicular distance between the line of action of foce and X-axis is, r_x = 0.5 m (equal to the thickness/height of the slab).

Therefore, moment about X-axis, M_x = r_x*F = 0.5*100 = 50 N-m.

5. The perpendicular distance between the line of action of foce and Z-axis is, r_z = 2 m (equal to the length of the slab).

Therefore, moment about Z-axis, Mz = r_z*F = 2*100 = 200 N-m