Mathematics

Problem

Two walkers start from the same lamp post at the same instant. Their displacements (in metres) after

t

seconds are given by

s_A = 2t + 6

and

s_B = 5t

respectively. At what time do the two walkers meet again? a)

1\,\text{s}

3\,\text{s}

2\,\text{s}

d) They never meet