This could be answered using Newton's second law of motion which is F = ma.
Where:
F is the net force;
m is the mass; and
a is the acceleration
but we need to solve for m which is mass, so rearrange the formula for Newton's second law of motion and you will get
m = F/a
m = 8/1.1
= 7.27 Kg this would be the answer.
