Question

1. A racecar accelerates uniformly from 20.0 m/s to 50.0 m/s in 30 seconds
Determine the acceleration of the car and the distance traveled.​

Answer 1

Answer: v² = u² + 2as  

2as = v² - u²  

a = (v² - u²) / 2s  

a = (20.0² m²/s² - 6.00² m²/s²) / (2 * 50.0 m)  

a = (400 m²/s² - 36 m²/s²) / (100 m)  

a = (364 m²/s²) / (100 m)  

a = 3.64 m/s²

Explanation:

Answer 2

Answer:1m/s^-2

Explanation:V=u+at where;

V(final velocity)=50m/s

U(Initial velocity)=20m/s

a(acceleration)=?

t(time)=30seconds

Therefore; 50=20+a(30)

Collect like terms

50-20=30a

30=30a

Divide both side by 30

a=1ms^-2