Question

A certain sports car can accelerate from 0 m/s to 27.7 m/sec with an acceleration of 11.2 m/s². How long does this acceleration take in seconds?

Answer 1

Answer:

Δt = 2.47 s

Explanation:

The problem involves just the formula of the acceleration:

$a = \frac{Δv}{Δt}$

$Δv = (27.7 - 0) \: m/s$

You want to know Δt, knowing the time and the speed. So:

$Δt = Δv/a$

Δt = 2.47 s