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Byju's Answer
Standard XII
Physics
Definition of a Projectile
with using fo...
Question
with using formula of radius of curvature find the radius of curvature of projectile (4,8)at its higher point?
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Solution
Dear Student ,
R
a
d
i
u
s
o
f
c
u
r
v
a
t
u
r
e
o
f
a
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p
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h
,
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t
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r
p
o
i
n
t
o
n
i
t
,
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s
g
i
v
e
n
b
y
:
r
=
1
+
d
2
y
d
x
2
3
2
d
2
y
d
x
2
Y
o
u
c
a
n
n
o
w
u
s
e
t
h
e
e
x
p
r
e
s
s
i
o
n
o
f
y
o
u
r
t
r
a
j
e
c
t
o
r
y
.
A
n
a
l
t
e
r
n
a
t
e
e
x
p
r
e
s
s
i
o
n
i
s
:
r
=
v
x
2
-
v
y
2
a
x
v
y
-
v
x
a
y
w
h
e
r
e
v
x
a
n
d
v
y
a
r
e
t
h
e
x
a
n
d
y
c
o
m
p
o
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n
t
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o
f
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y
a
t
s
o
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e
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o
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n
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a
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d
a
x
a
n
d
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a
r
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e
x
a
n
d
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c
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m
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n
t
s
o
f
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c
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a
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i
o
n
a
t
t
h
e
s
a
m
e
p
o
i
n
t
.
L
e
t
a
n
b
e
t
h
e
c
e
n
t
r
i
p
e
t
a
l
a
c
c
e
l
e
r
a
t
i
o
n
.
S
o
,
a
n
i
s
t
h
e
c
o
m
p
o
n
e
n
t
o
f
a
p
e
r
p
e
n
d
i
c
u
l
a
r
t
o
v
.
a
n
→
=
a
→
×
v
→
v
a
n
=
a
x
v
y
-
v
x
a
y
v
x
2
+
v
y
2
N
o
w
,
a
n
=
v
2
r
s
o
,
r
=
v
2
a
n
S
u
b
s
t
i
t
u
t
e
v
x
2
+
v
y
2
f
o
r
v
2
a
n
d
t
h
e
a
b
o
v
e
e
q
u
a
t
i
o
n
f
o
r
a
n
,
y
o
u
g
e
t
,
r
=
v
x
2
+
v
y
2
3
2
a
x
v
y
-
v
x
a
y
S
i
n
c
e
w
e
a
r
e
u
sin
g
s
c
a
l
a
r
n
o
t
a
t
i
o
n
h
e
r
e
y
o
u
c
o
u
l
d
a
s
w
e
l
l
u
s
e
,
r
=
v
x
2
+
v
y
2
3
2
a
x
v
y
-
v
x
a
y
Regards
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