A small car of mass m and a large car of mass 4m drive along a highway at constant speed. They approach a curve of radius R. Both cars maintain the same acceleration a as they travel around the curve. How does the speed of the small car vS compare to the speed of the large car vL as they round the curve?

i. vs=1/4vl

ii. vs=1/2vl

iii. vs=vl

iv. vs=2vl

v. vs=4vl