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Physics
Physics
Problem
When deriving
s
=
u
t
+
1
2
a
t
2
s = u t + \tfrac12 a t^2
s
=
u
t
+
2
1
a
t
2
by integrating
v
=
u
+
a
t
v = u + a t
v
=
u
+
a
t
, a constant of integration
C
C
C
appears. Which initial condition is used to set
C
=
0
C = 0
C
=
0
? a) At
t
=
0
t = 0
t
=
0
,
v
=
0
v = 0
v
=
0
b) At
t
=
0
t = 0
t
=
0
,
u
=
0
u = 0
u
=
0
c) At
t
=
0
t = 0
t
=
0
,
s
=
0
s = 0
s
=
0
d) At
t
=
0
t = 0
t
=
0
,
v
=
u
v = u
v
=
u
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