The law of conservation of energy:

$\overline{){\mathbf{P}}{\mathbf{.}}{{\mathbf{E}}}_{{\mathbf{0}}}{\mathbf{+}}{\mathbf{K}}{\mathbf{.}}{{\mathbf{E}}}_{{\mathbf{0}}}{\mathbf{=}}{\mathbf{P}}{\mathbf{.}}{{\mathbf{E}}}_{{\mathbf{f}}}{\mathbf{+}}{\mathbf{K}}{\mathbf{.}}{{\mathbf{E}}}_{{\mathbf{f}}}}$

Initially, the rocket has both gravitational potential energy and kinetic energy.

However, in the final stage, there is no gravitational potential energy since the rocket is far away from the earth. It only has kinetic energy.

A rocket is launched straight up from the earth's surface at a speed of 1.50×10^{4} m/s

What is its speed when it is very far away from the earth?

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the More Conservation of Energy Problems concept. You can view video lessons to learn More Conservation of Energy Problems. Or if you need more More Conservation of Energy Problems practice, you can also practice More Conservation of Energy Problems practice problems.