Q:A stone falls freely under gravity. It covers distances *h*_{1}, *h*_{2} and *h*_{3} in the first 5s, the next 5s and the next 5s respectively. The relation between *h*_{1}, *h*_{2} and *h*_{3} is

(a) h_{1} = 2h_{2} = 3h_{3}

(b) h_{1} = h_{2}/3 = h_{3}/5

(c) h_{2} = 3h_{1} and h_{3} = 3h_{2}

(d) h_{1} = h_{2} = h_{3}

**Ans: (b)**