To complete the derivation, we will substitute both changes in energy into the equation for the conservation of energy, and solve for the critical
speed v.Step Reason
7. ǻPE + ǻKE = 0 conservation of energy
8. substitute equations 3 and 6 into equation 7
9. solve for v
12.19 - Gotchas
The freefall acceleration rate, g, does not depend on the mass that is falling. If you say yes, you are agreeing with Galileo and you are correct.
A satellite can move faster and yet stay in the same circular orbit. No, it cannot. The speed is related to the dimensions of the orbit.(^240) Copyright 2000-2007 Kinetic Books Co. Chapter 12