Problem 4. (15 pt) See the following Figure 2. Assume the mass of the jar is 25kg (ignore the weight of bucket in hands) and it is balanced directly above the

lumbar spine. Roughly calculate the additional spinal compression due to the load. Comment on the effect on spinal loading, if any, of carrying a 5kg baby in the manner shown. Figure 2. Efficient load carriage. The jar is carried on the head and the child is carried on the low back. The spine and pelvis are loaded axially.