total weight on floor = 9.8*(40.6+69.1) Newtonns which is the force up from the floor on the crate.
for the crate to the person, the person's weight which is 9.8*69.1 Newtons
A 40.6-kg crate rests on a horizontal floor, and a 69.1-kg person is standing on the crate. Determine the magnitude of the normal force that (a) the floor exerts on the crate and (b) the crate exerts on the person.
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