Q95 / 180 · NEET 2013 (All India) · Physics
A stone falls freely under gravity. It covers distances $h_1, h_2$ and $h_3$ in the first 5 seconds, the next 5 seconds and the next 5 seconds respectively. The relation between $h_1, h_2$ and $h_3$ is
- A$h_1=2 h_2=3 h_3$
- Correct answerB$h_1=\frac{h_2}{3}=\frac{h_3}{5}$
- C$h_2=3 h_1$ and $h_3=3 h_2$
- D$h_1=h_2=h_3$
Solution
The relation between $h_1, h_2$ and $h_3$ is
$$
\begin{aligned}
h_1 & =\frac{h}{3}=\frac{h_3}{5} \\
\Rightarrow h_1: h_2: h_3 & =1: 3: 5
\end{aligned}
$$
Hence, the correct answer is option: 'B'.