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Physics
Physics
Problem
Which equation correctly gives the vertical displacement
s
s
s
of an object with nonzero initial velocity
u
u
u
after time
t
t
t
when the acceleration is uniform and equal to
a
a
a
? a)
s
=
u
t
+
a
t
2
s = ut + a t^2
s
=
u
t
+
a
t
2
b)
s
=
u
t
+
1
2
a
t
2
s = ut + \tfrac{1}{2} a t^2
s
=
u
t
+
2
1
a
t
2
c)
s
=
u
t
s = ut
s
=
u
t
d)
s
=
v
t
−
1
2
a
t
2
s = vt - \tfrac{1}{2} a t^2
s
=
v
t
−
2
1
a
t
2
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