Motion 2 - SS1 Physics Past Questions and Answers - page 2

Free fall is the motion of an object when it is only under the influence of gravity, with no other forces acting on it. During free fall, the object experiences a constant acceleration due to gravity, which is approximately 9.8 m/s2 near the surface of the Earth. This means that the object's velocity increases by 9.8 m/s every second. The acceleration due to gravity remains constant throughout the motion, regardless of the object's mass or shape.

The range of a projectile, which refers to the horizontal distance it travels, is influenced by several factors. The primary factors are the initial velocity and the launch angle. Increasing the initial velocity will result in a greater range, assuming the launch angle remains the same. 

The horizontal component remains constant throughout the motion, while the vertical component is affected by gravity. The horizontal velocity is constant, and the object moves at a constant speed in the horizontal direction. On the other hand, the vertical velocity changes due to the acceleration caused by gravity. The vertical motion follows a curved path, reaching its highest point when the vertical velocity becomes zero. The horizontal and vertical components of motion are independent of each other, but they combine to produce the curved trajectory of a projectile.