[问答题]
If the speed of a car is increased by 50%, by p+c)-o,bpch3x b4d lx what factor will its minimumy4o6f4xp ftmm-t dm:ia8e *b; braking distance be increased, assuming all else is the 4pmi8 f:b ytd6o-*ftmm4e; axsame? Ignore the driver’s reaction time.