Jacopo and Marco decide to go for a run in the park.
They both start together, but Jacopo, more trained, starts with a double acceleration a = 0.1 m/s^2.
They both run maintaining constant acceleration for a minute, then Marco decides to continue with constant speed.
Jacopo, being much ahead, decides to wait for his friend, continuing to run, but abruptly changing speed and then keeping it constant.
Knowing that they will meet after 200 m, calculate the speed at which Jacopo must proceed to wait for his friend.
Draw motion diagrams for velocity and position for both.