In part C, the maximum height reached by the ball is the same as the initial height at which the ball was thrown. This is because the ball reaches its highest point and then falls back down to the ground, following a parabolic path.
In part C, the ball reaches its maximum height at the halfway point of its trajectory. Therefore, the time taken for the ball to reach its maximum height is half of the total time taken for the ball to complete its journey.
Yes, the velocity of the ball changes while it is in the air in part C. Initially, the ball moves upwards with a positive velocity, then at the highest point it has a velocity of 0, and finally, it moves downwards with a negative velocity. This change in velocity is due to the acceleration of gravity.
In part C, air resistance (or drag) does not have a significant effect on the motion of the ball. This is because the ball is moving in a straight line and not at high speeds, so the force of air resistance is minimal. However, if the ball was thrown at a higher speed or at a different angle, air resistance would play a larger role in its motion.
The acceleration of the ball while it is in the air in part C is always equal to the acceleration due to gravity, which is approximately 9.8 m/s². This acceleration acts in the opposite direction to the velocity of the ball, causing it to slow down as it moves upwards and speed up as it moves downwards.