Answer:
The basketball has a constant negative acceleration due to gravity when it is thrown
Step-by-step explanation:
Before the basket ball is thrown, and when the basket ball is in free fall flight it is always under and experiences an attractive force between the Earth and all objects on Earth known as gravitational force such that the direction of the acceleration of the gravitational force is always towards the Earth and therefore, downwards, resulting in an increasing decreased upward speed of the thrown ball in the projectile motion, equivalent to the ball having a negative acceleration, same as all objects in free fall.