Acceleration = v2 - v1 / t
a = 80 - 40 / 2
a = 40 / 2
a = 20 m/s²
In short, Your Answer would be 20 m/s²
Hope this helps!
In my opinion,I think the answer is b.You can control variables more easily by doing different things for different purposes.
I., II., and IV. are examples of acceleration. III. isn't.
Answer:
Metals, nonmetals and metalloids.
Explanation:
B. The Particles Have Less Kinetic Energy than those of..