The acceleration
a of the particle
is given by the weight mg
of the particle and
by the second law of Newton.
m ( axi +
ayj )
= m a
= F
= - mgj
or in column notation
|
(
|
|
)
|
= m
|
(
|
|
)
|
= m a
= F =
|
(
|
|
)
|
→
a =
|
(
|
|
)
|
We find that the particle has no acceleration
in the horizontal x direction
(ax = 0),
whereas its acceleration in the vertical y
direction is given by gravity
(ay = -g)
and is independent of the mass m
of the particle.
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