Three bodies are thrown like this: the first – down without initial speed, the second – down with initial speed

Three bodies are thrown like this: the first – down without initial speed, the second – down with initial speed, the third – up. What can be said about the accelerations of these bodies?

Since these bodies are acted upon only by the gravity force of the Earth, that is, the force of gravity. All three bodies will move with the same acceleration g = 9.8 m / s2, which will be directed vertically downward. For the third option, the acceleration will be directed against the initial velocity and the body will decelerate until it stops and then starts to move downward. In the first and second cases, the acceleration and speed of movement coincide in direction, so the bodies will accelerate and increase their speed.