alice and bob stand on the roof of a building, each with a soccer ball. alice kicks her ball perfectly horizontally, giving it some velocity in the x-direction. bob instead drops his ball straight down from the edge of the roof. if they do so at exactly the same time, which ball hits the ground first?



Answer :

First to strike the ground is Alice's ball. component of acceleration and velocity that is horizontal

What is an easy way to define velocity?

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.

How do velocity and acceleration differ?

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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