A ball thrown vertically upwards will have constant _ and a varying _

Explanation

When a ball is thrown vertically upwards, it experiences a constant acceleration due to gravity, which is approximately -9.8 m/s². This acceleration acts downward, opposite to the direction of the ball's initial motion. Consequently, the ball's velocity changes as it rises and falls. Initially, the velocity decreases as the ball moves upwards, reaching zero at the peak of its motion. As the ball falls back down, the velocity increases in the downward direction. Therefore, the correct answer is that the ball has constant acceleration and varying velocity.Other options are incorrect because:Velocity and acceleration: Velocity is not constant; it changes due to gravity.Kinetic energy, velocity: Kinetic energy changes, but cannot be paired with a constant velocity.Kinetic energy and acceleration: Kinetic energy changes, but acceleration due to gravity is constant.