An 88 kg person is standing on a scale in an elevator. What is the reading of the scale in Newtons if the elevator is at the following speeds?
a) At rest
b) Moving up with a constant velocity of 4.5 m/s
a) a) 860 N; b) 860 N
b) a) 784 N; b) 860 N
c) a) 784 N; b) 832 N
d) a) 860 N; b) 832 N
