For each of the following situations, evaluate whether the relationship between the given force is less than, greater than, equal to, or can't tell and explain why that would be the case.
a. The elevator is at rest.
F(scale on man)______F(gravity on man)
b. The elevator is moving downward at constant speed.
F(scale on man)______F(gravity on man)
c. The elevator is moving downward at an increasing speed.
F(scale on man)______F(gravity on man)
d.The elevator is moving upward at a decreasing speed.
F(scale on man)______F(gravity on man)
e. The elevator is at rest on the 30th floor.