Posted by Iklishi on Sunday, November 6, 2011 at 7:34pm.
An airplane passenger carries a 260 N suitcase up the stairs, a displacement of 3.80 m vertically, and 4.30 m horizontally.
(a) How much work does the passenger do?
(b) The same passenger carries the same suitcase back down the same stairs. How much work does the passenger do now?

Physics  bobpursley, Sunday, November 6, 2011 at 7:36pm
work= mg*height
this time,gravity does work on suitcase,so it is negative.

Physics  Iklishi, Sunday, November 6, 2011 at 7:48pm
So how am I supposed to use the heights given from the problem? Subtract 4.30 m from 3.80 m?
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