Writing out the y component of Newton’s Second Law, being careful to distinguish between inertial and gravitational mass, and noting that both the weight and the acceleration are in the negative \...Writing out the y component of Newton’s Second Law, being careful to distinguish between inertial and gravitational mass, and noting that both the weight and the acceleration are in the negative y direction: ∑Fy=−Fg=−mIa∴mGg=mIa This makes it clear that g is not necessarily the acceleration due to gravity.
