38+39+40 = 117.
So the first of the three numbers is 38.
Answer:
3
Step-by-step explanation:
just do (-1/2) x (-6) where the negatives cancels out and half of 6 is 3
Brainilist Maybe?
1) Type of motion: constant acceleration.
2) acceleration, a = 9.8 m/s^2
3) time up = time down = 4seconds / 2 = 2 seconds
4) formula = Vf = Vo - a*t^2/2
Vf = 0 => Vo = a*t^2 / 2 = 9.8m/s^2 * (2 s)^2 / 2 = 19.6 m/s
Answer: 19.6 m/s
