Question

If the 50.0 kg boy were in a spacecraft 5r from the center of the earth, what would his weight be? (use the 50.0 kg boy for significant figures)

Answer 1

The boy weighs 50.0 kg when he is 1R from the center of the Earth. To get his weight  5R away, we can use the formula:

$W_{boy}$ = G * m1 * m2 / $r^{2}$

Where G, m1, and m2 are constants. By ratio and proportion:

$W_{boy}$  * ($(5R)^{2}$= 50.0 kg * 9.81 m/ * ($(1R)^{2}$

Canceling R on both sides and by computation:

$W_{boy}$= 19.6 N

Answer 2

Answer:

19.6 N

Explanation:

Hope this helps.