Question

A car increases from 15 km/s to 45 km/s in 5 seconds. Calculate the average acceleration of the car during these 5 seconds.

6 km/s2
12 km/s2
30 km/s2
60 km/s2

Answer 1

6km/s^2

Step-by-step explanation:

a = (45 - 15) /5

a = 30 /

a = 6 km/s

Answer 2

The answer to your question is 6 km/s

Step-by-step explanation:

Acceleration is a change in velocity with respect to time, its units are m/s² or km/h².

Data

vo = 15 km/h

vf = 45 km/h

t = 5 s

Formula

`a = (vf - vo)/(t)`

Substitution

a = (45 - 15) / 5

a = 30 / 5

a = 6 km/s