#### The truck’s initial odometer reads 400 kilometres. It drove for 04 hours and the final odometer showed 868 kilometres. Find out the approximate average speed of the truck.Option: 1 16 m/s  Option: 2 32 m/s  Option: 3 20 m/s  Option: 4 40 m/s

Velocity is the directional speed of a moving object, expressing the rate of change in position as perceived from a particular frame of reference and measured against a particular time standard. Velocity is a fundamental concept in kinematics, a branch of classical mechanics that describes the motion of objects.

Average Velocity =

$\frac{total\ path\ of\ length\left ( s \right )}{total\ time\ taken\left ( t \right )}$

According to the Question:

Given that:

Initial Odometer (S1) = 400 Kilometre

Final Odometer (S2) = 868 Kilometre

Time (t) = 04 hours.

We know that:

Average Speed (v) = $\frac{\Delta s}{t}\$

$=\frac{468}{4}$

$=114\ \frac{km}{hr}$

Now,

Converting km/hr to m/s and multiplying km/hr by      $\frac{5}{18}$

We get:

$V=114\frac{km}{hr}\times\frac{5}{18}$

Or, $V=6.3\times5$

Or, $V= 31.5\frac{m}{s}\approx32\frac{m}{s}$