130k views
2 votes
1. A car increases its speed from 9.6 meters per second to 12.8 meters per second in 8.0

seconds. What is the acceleration of the car?
a. 2.4 m/s²
b. 5.2 m/s²
c. .4 m/s²
d. 2.8 m/s²

User Tongueroo
by
3.2k points

2 Answers

5 votes
Your answer should be “c”
User Chekmare
by
3.0k points
1 vote

Answer:

c

Step-by-step explanation:

Acceleration = change in speed / change in time

= (12.8- 9.6) / ( 8) = 3.2 / 8 = .4 m/s^2

User Richard Green
by
3.7k points