Question

An astronaut r thousand miles from the center of the earth weighs 2830/r^2 pounds. The surface of the earth is 4000 miles from the center.

(a) If the astronaut is h thousand miles above the surface of the earth, express r as a function of h. Enter your answer as an equation, such as r=5h−1.

help (equations)

(b) Express the astronaut's weight w, in pounds, as a function of h. Enter your answer as an equation, such as w=5h−1.

Answer 1

@dan815

Answer 2

Draw it out

Answer 3

?

Answer 4

What have you tried so far ?