Compute all parts of following problem:
Problem: In 1990 Walter Arfeuille of Belgium lifted a 281.5-kg object through a distance of 17.1 cm using only his teeth.
Part A: How much work was done on the object by Arfeuille in this lift, assuming the object was lifted at constant velocity?
in J
Part B: What total force was exerted on Arfeuille's teeth during the lift?
in kN
I need help to determine what total force was exerted on Arfeuille's teeth during the lift.