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Physics
Physics
Problem
When deriving
v
2
=
u
2
+
2
a
s
v^{2}=u^{2}+2as
v
2
=
u
2
+
2
a
s
, the time
t
t
t
obtained from the first equation of motion is substituted into the second equation. Which expression for
t
t
t
is used? a)
(
v
+
u
)
/
(
2
a
)
(v+u)/(2a)
(
v
+
u
)
/
(
2
a
)
b)
(
v
−
u
)
/
a
(v-u)/a
(
v
−
u
)
/
a
c)
(
v
−
u
)
/
(
2
a
)
(v-u)/(2a)
(
v
−
u
)
/
(
2
a
)
d)
s
u
/
a
su/a
s
u
/
a
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