Question

if a car was driven at 60kmh^-1 continually for two hours yet the average velocity for the journey was zero,explain how this could be so​

Answer 1

Answer:

The average velocity of the car was zero because the displacement was zero.

Explanation:

Average velocity is the rate of change of displacement with time. Mathematically, it is calculated as follows;

$v = \frac{\Delta x}{\Delta t} = \frac{x_2 - x_1}{t_2 - t_1}$

where;

x₁ is the initial position or starting point of the car

x₂ is the final position or finishing point of the car

t₁ is the initial time = 0

t₂ is the final time = 2 hours

The average velocity can be zero if the initial position of the car is equal to its final position. In this condition, the displacement of the car is zero.

Therefore, the average velocity was zero because the displacement was zero.