Recent content by Benjamin Fogiel

r1 = h r2 = "very far away" Sorry, forgot to define those values. Yes, that helped! So Uf is essentially zero which then gives me the right answer. Thank you.

Homework Statement A rocket burns out at an altitude h above the Earth's surface. Its speed v0 at burnout exceeds the escape speed vesc appropriate to the burnout altitude. Show that the speed v of the rocket very far from the Earth is given by v=(v02-v2esc)1/2 Homework Equations KEf-KEi=Ui-Uf...