I like Serena said:You seem to be on a roll here.
Well, I'm in a good mood so I'll take this one on as well.
When the ball is going up, in which direction does the velocity vector point? up
And in which direction does the gravity vector point? down
After that, when the ball is going down, in which direction does the velocity vector point? down
And in which direction does the gravity vector point?down
A ball's acceleration is the rate at which its velocity changes over time. Velocity, on the other hand, is the speed and direction of the ball's motion.
Acceleration and velocity vectors are typically represented graphically by arrows. The length of the arrow represents the magnitude of the vector, and the direction of the arrow represents the direction of the vector.
A ball's acceleration and velocity can be affected by various factors, such as the force applied to the ball, the mass of the ball, and the air resistance acting on the ball.
Acceleration and velocity vectors are closely related. Acceleration is the change in velocity over time, so the direction of the acceleration vector is in the same direction as the change in velocity.
A ball's acceleration and velocity can change constantly during its motion. For example, when a ball is thrown upward, its velocity decreases due to the force of gravity, resulting in a negative acceleration. As the ball falls back down, its velocity increases and the acceleration becomes positive again.