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Byju's Answer
Standard XII
Physics
Vector Notation
The co-ordina...
Question
The co-ordinate of a moving point
P
(
a
t
2
,
2
a
t
)
where
t
is a parameter, then find the locus of the point
P
.
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Solution
Given
the co-ordinate of a moving point
P
(
a
t
2
,
2
a
t
)
.
Let the co-ordinate of the point
P
be
(
x
,
y
)
.
Then
x
=
a
t
2
......(1) and
y
=
2
a
t
or
t
=
y
2
a
.
Putting the value of
y
in (1) we get,
x
=
a
y
2
4
a
2
or,
y
2
=
4
a
x
.
This is the locus of the point
P
.
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