First to strike the ground is Alice's ball. component of acceleration and velocity that is horizontal
A particle or object's movement with function of time is expressed vectorially as velocity. The meter per second (m/s), usually referred to as speed, is the accepted unit of velocity magnitude.
Acceleration is the speed at which displacement changes. The pace at which speed changes is known as acceleration. Because it comprises of both magnitude and direction, velocity is a vector quantity. Since acceleration is merely the rate at which velocity changes, it too is a vector quantity.
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