Question

If a car's velocity changes from 25 m/s to 100 m/s in 4.5 seconds, what is the car's acceleration?

A) 75 m/s²
B) 18.75 m/s²
C) 22.5 m/s²
D) 300 m/s²

Answer 1

The car's acceleration is 75 m/s².

Step-by-step explanation:

The car's acceleration can be calculated using the equation:

Acceleration = (Final velocity - Initial velocity) / Time

Given that the initial velocity is 25 m/s, the final velocity is 100 m/s, and the time is 4.5 seconds, substituting these values into the equation, we get:

Acceleration = (100 m/s - 25 m/s) / 4.5 s = 75 m/s²

Therefore, the car's acceleration is 75 m/s².