Question

What is the acceleration of a car that moves at a steady velocity of 100 km/h for 100 seconds? Explain your answer.

Answer 1

Answer:

a = 0 m/s²

Explanation:

given,

car moving at steady velocity = 100 Km/h

         1 km/h = 0.278 m/s

      100 Km/h = 27.8 m/s

time of acceleration = 100 s

acceleration is equal to change in velocity per unit time.

 $a=\dfrac{dv}{dt}$

change in velocity of the car is 27.8 - 27.8 = 0

 $a=\dfrac{0}{100}$

        a = 0 m/s²

If the car is moving with steady velocity then acceleration of the car is zero.

Hence, the acceleration of the car is equal to a = 0 m/s²