A .075 Kg toy rocket is launched straight up from the ground at 19 m/s.
(A) What's its kinetic energy?
(B) Find the work done by gravity and the rocket's new kinetic energy after it has risen 10m.
(C) Use the answer in part B to find the rockets speed at 10m.
(D) Calculate the power of gravity force during the first 10s. Thanks for the help!