Physics Work,Power & Energy Level: Misc Level

A  big car of mass 2 m travels at speed v, and a small car of mass m travels with a speed 2 v, Both skid to a stop with the same coefficient of friction.

a.The small car will have;

1.a longer stopping distance

2.the same stopping distance

3.a shorter stopping distance

b. Calculate the ratio of the stopping distance of the small car to that of the large car. (Use the work-energy theorem, not Newton,s laws.)