A car moving on a straight path covers a distance of 1 km due east in 100 s.

What is

(i) the speed and

(ii) the velocity of car ?

As we know,

$\text{Speed (v)} = \dfrac{\text{distance (S)}}{\text{time (t)}} \\[0.5em]$

Given,

Distance travelled S = 1 km = 1000 m,

time t = 100 s

Substituting the values in the formula above, we get,

$\text{Speed (v)} = \dfrac{1000 \text { m} }{ 100 \text{ s}} \\[0.5em] \Rightarrow \text{Speed (v)} = 10 \text { ms}^{-1} \\[0.5em]$

Hence, speed of the car is 10 m s^-1

(ii) The magnitude of velocity of the car is same as that of speed of car i.e., 10 m s^-1

However, when we talk about velocity, we mention direction also.

Hence, velocity of car is 10 m s^-1 due east.