http://www.answerbag.com/profile/610131 New Answerbag answers from Marsha Tue, 29 May 2012 23:07:33 -0700 Tue, 29 May 2012 23:07:33 -0700 http://www.answerbag.com/a_view/4311039 What is upthrust<br /><br />Upthrust is the upward force exerted on an object in a fluid. It arises as a result of the difference in pressure exerted by the fluid on the surface of the object at different depth. Sat, 18 Oct 2008 06:00:36 -0700 http://www.answerbag.com/a_view/4311039