Homework Help: physics

Posted by Haley on Thursday, May 10, 2012 at 8:43pm.

A 15.0-kg test rocket is fired vertically from Cape Canaveral. Its fuel gives it a kinetic energy of 1961 J by the time the rocket motor burns all the fuel. What additional height will the rocket rise?
m
- how do you organize this?
how do the J's fit in?

physics - Elena, Friday, May 11, 2012 at 2:15pm
KE =PE = m•g•h
h = KE/m•g =1961/15•9.8 =13.34 m

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