Question

A sledgehammer weighs 18 pounds on earth and 4 pounds on the planet namar. based on the numbers given, your weight on namar would be about _____ times your weight on earth.

Answer 1

My weight would be  (4/18)  =  22.2% (rounded) of my Earthly weight.
I'm going to stop there, and not mention what that would be.

Answer 2

Answer:

2 by 9 (2/9) times

Explanation:

The weight of an object depends on the acceleration due to gravity of the planet on which the object is.

$W_e$= Weight of sledgehammer on Earth = 18 pounds

$W_n$= Weight of sledgehammer on planet Namar = 4 pounds

Dividing the values we get

$\frac{W_e}{W_n}=\frac{18}{4}\\\Rightarrow W_n=\frac{4}{18}W_e\\\Rightarrow W_n=\frac{2}{9}W_e$

So, your weight on Namar would be 2 by 9 (2/9) times your weight on Earth.