Question: A flat go-kart track consists of two straight ways 100 m long with semicircular ends which have a radius of 25.0 m. A go-kart executes the curved end with a constant tangential acceleration while slowing from 12.5 m/s to 4.7 m/s.
Part A: Determine the magnitude of the total acceleration of the go-kart at the beginning and end of the curve.
Please explain your answer. I know substitution is involved so be sure to give a detailed explanation on that as well.