Answer:
686 N
Step-by-step explanation:
OH BOY, NEWTONS LAWS OF MOTION!
look at this:
a fun fact is that acceleration 9.8 m/s^2 is actually GRAVITY.
so lets do this and rewrite the formula...
lets multiply 70 and 9.8
we get 686 N.
if you want to be technical about it...... the answer should only have two sig figs. so it would be...
N
NICE!