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Byju's Answer
Standard XII
Mathematics
Rotation of Axes
A particle mo...
Question
A particle moves according to the equation
x
=
a
sin
ω
t
and
y
=
a
(
1
−
cos
ω
t
)
. The path of the particle is
A
circle
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B
parabola
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C
hyperbola
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D
cycloid
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E
ellipse
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Solution
The correct option is
C
cycloid
x
=
a
sin
w
t
y
=
a
(
1
−
cos
w
t
)
o
r
(
y
a
−
1
)
=
−
cos
w
t
(
x
a
)
2
+
(
y
a
−
1
)
2
=
1
x
2
+
(
y
−
a
)
2
=
a
2
⇐
E
q
u
a
t
i
o
n
o
f
c
i
r
c
l
e
Thus the point moves on the rim of a circle which is above the origin by
a
, therefore the path traced by it is going to be cycloid.
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