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17. Constant acceleration in both directions (
x
and
y
) allows us to use Table 21 for the
motion along each direction. This can be handled individually (for
Δ
x
and
Δ
y
) or together
with the unitvector notation (for
Δ
r
). Where units are not shown, SI units are to be
understood.
(a) The velocity of the particle at any time
t
is given by
GG G
vv a
t
=+
0
, where
G
v
0
is the
initial velocity and
G
a
is the (constant) acceleration. The
x
component is
v
x
=
v
0
x
+
a
x
t
=
3.00 – 1.00
t
, and the
y
component is
v
y
=
v
0y
+
a
y
t
= –0.500
t
since
v
0y
= 0. When the particle reaches its maximum
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 Spring '08
 Any
 Physics, Acceleration

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