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JEE Main Physics Class 11 Gravitation Part 2 Questions
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© examsnet.com
Question : 1
Total: 89
A metal wire of uniform mass density having length
L
and mass
M
is bent to form a semicircular arc and a particle of mass
m
is placed at the centre of the arc. The gravitational force on the particle by the wire is:
[4 Apr 2024 Shift 1]
GMm
π
2
L
2
0
GmM
π
2
L
2
2
GmM
π
L
2
Validate
Solution:
👈: Video Solution
We have
R
=
L
π
g
0
=
2
G
M
L
R
=
2
GM
π
L
2
∴
F
m
=
mg
0
=
2
GM
π
m
L
2
Hence option (4)
© examsnet.com
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