In: Physics
Let V be the launching speed.
We can design and conduct a simple experiment of rolling a ball and making it fall from edge of a table.
while falling from edge,the ball will follow a projectile motion.
Now
Horizontal = x component of V
Vertical = y component of V
Magnitude of
In our experiment
Hence = Vx= V and Vy=0
let the mass of ball be = m
along Vertical direction = we have Gravitational force acting
along Horizontal Directiion = no Force acting .
Landing point will
a = 0 along x
In our experiment V_x=V
will be the landing point distance from edge of table horizontally.
in our experiment where H is Height of our table.
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Extra information
We can even derive more generic terms for horizontal distance(x)and time(t),with other experiments with different theta as
and