posted by Kristi .
A 38.3-kg crate rests on a horizontal floor, and a 74.7 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.
W=g(38.3+74.7) one is down, the other is up.
crate on person is weight of person
74.7 * g
a) Floor exert on the crate is weight of the crate (38.3kg) plus weight of person (74.7kg) in Newtons
b) Crate on person is weight of person in Newtons