Question

An 80lbg person It’s just barely stationary on a slippery slope of 15° What was the acceleration be if you were suddenly cut in half

Answer 1

The acceleration does not depend on mass if there is no friction and only depends on the angle of the incline:

$$a=g\text{ sin}\theta=9.8\text{sin}15º=2.5\text{ m/s}^2.$$