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JEE Advanced 2020 Full Test 1 Paper 1
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© examsnet.com
Question : 5
Total: 54
A hollow tube containing a ball is kept on smooth horizontal surface. Now, tube is accelerated horizontally and ball is slightly displaced from point 'A'. Let
N
1
and
N
2
be the magnitude of normal force applied by inner and outer surface respectively. Then, which of the following is\/are correctly represent approximate nature of
N
1
and
N
2
V
s
θ
(
0
≤
θ
≤
π
)
Validate
Solution:
From Work energy theorem
m
a
0
R
(
1
−
cos
θ
)
=
1
2
m
v
2
v
2
=
2
a
0
R
(
1
−
cos
θ
)
−
−
−
(
1
)
m
a
0
cos
θ
−
N
1
=
m
v
2
R
−
−
−
(
2
)
N
1
=
(
3
cos
θ
−
2
)
m
a
when
cos
θ
=
2
3
N
1
=
0
for
θ
>
cos
−
1
(
2
3
)
N
1
=
0
N
2
=
m
a
0
(
2
−
3
cos
θ
)
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