Question

Solve for your own mass. Assume local g=9.8 mps² . Explain your solution.

Answer 1

Given:

$m=70\:\rm kg$

$g=9.8\:\rm m/s^2$

The weight of the object at the Earth's surface is given by

$$W=mg=70\:\rm kg*9.8\:\rm m/s^2=686\: N$$