Answer:
a) initial position = 10m
b) average velocity = 30m/s
Step-by-step explanation:
The general equation of a motion with constant velocity is given by:
(1)
So: initial position
v: average velocity
t: time
You have the following equation:
(2)
If you compare the equations (1) and (2) you obtain that:
![S_o=10m\\\\v=30(m)/(s)](https://img.qammunity.org/2021/formulas/physics/high-school/lihbcoj7f3lmo4rh7c0b7d6cklm26bky42.png)
hence:
a) initial position = 10m
b) average velocity = 30m/s