What's the concept of acceleration in horizontal and vertical projectile motion?

Answer 1

In horizontal projectile motion, the object experiences constant velocity in the horizontal direction. This means that the acceleration in the horizontal direction is zero, as there is no change in velocity.

In vertical projectile motion, the object is initially launched with an initial vertical velocity and experiences an acceleration due to gravity. The acceleration due to gravity is always directed downwards, and it is approximately equal to 9.8 meters per second squared near the Earth's surface.

The acceleration in vertical projectile motion is constant in magnitude and direction. It causes the object to continuously increase its velocity in the downward direction while it is moving upward, and to decrease its velocity in the upward direction while it is moving downward. At the highest point of its trajectory, the object's velocity in the vertical direction is zero, and it starts to fall back downward due to gravity.

In summary, the concept of acceleration in horizontal projectile motion is zero, while in vertical projectile motion, the object experiences a constant downward acceleration due to gravity.