Question

A gun is aimed at a horizontal target. It takes $\frac{1}{2}s$ for the bullet to reach the target. The bullet hits the target $x$ meter below the aim. Then $x$ is equal to (Take $g=9.8m/s^2$)

• A. $\frac{9.8}{4}m$
• B. $\frac{9.8}{8}m$
• C. $9.8m$
• D. $19.6m$

Answer 1

The correct option is B $\frac{9.8}{8}m$

$x=\frac{1}{2}g{t}^2$
$x=\frac{1}{2}\times 9.8\times \frac{1}{2}\times \frac{1}{2}=\frac{9.8}{8}m$