As a woman carries her suitcase up a flight of stairs, she does work against
gravity. If the mass of her suitcase is 10 kg and the flight of stairs is 12 m tall,
how much work does she perform by carrying her suitcase? (Recall that g=
9.8 m/s2)
A. 1253 J
B. 1321 J
C. 1176 J
D. 1395 J