It takes the elevator in a skyscraper 4.1s to reach its cruising speed of 13m/s. A 68kg passenger gets aboard on the ground floor.
A) What is the passenger's weight before the elevator starts moving? (to two sig figs using the appropriate units)
B) What is the passenger's weight while the elevator is speeding up? (to two sig figs using the appropriate units)
C) What is the passenger's weight after the elevator reaches its cruising speed? (to two sig figs using the appropriate units)