Cars P and Q start from rest at the same point on a straight road

PHYSICS · Subjective · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

Cars P and Q start from rest at the same point on a straight road. Car P has a constant acceleration of

+2.0\,\text{m/s}^2

, while car Q has a constant acceleration of

+1.0\,\text{m/s}^2

. Determine which car has traveled the greater displacement after

4.0\,\text{s}

and calculate by how many meters it leads the other car.