Question

A car traveling at 23 m/s starts to decelerate steadily. It comes to a complete stop in 5 seconds. What is its acceleration?

Answer 1

We could determine the acceleration using this formula

`\boxed{a= (v_(1)-v_(0))/(t) }`

Given from the question v₀ = 23 m/s, v₁ = 0 (the car stops), t = 5 s
plug in the numbers

`a= (v_(1)-v_(0))/(t)`

`a= (0-23)/(5)`

`a= (-23)/(5)`
a = -4.6
The acceleration is -4.6 m/s²