Question

A truck is moving with a constant speed of 10m/sec and the driver see a pole at a distance of 50 m from the truck on a straight road and instantly applies the brake with retardation of 2m/sec². the distance between truck and pole after 6 sec of brake applied is ?

Answer 1

$$\begin{gathered} s=ut-\frac{1}{2}a{t}^2 \\ \Rightarrow s=10\times 6-\frac{1}{2}\times 2\times 6^2 \\ \Rightarrow s=24m \end{gathered}$$
Distance between the truck and the pole will be
$\left(50-24\right)m=26m$