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Byju's Answer
Standard XII
Physics
Work Energy Theorem Application
The speed wit...
Question
The speed with which a body is projected inside a tunnel is 40
m
s
−
1
and the maximum range is 80
m. Find the
height of tunnel.
A
5 m
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B
10 m
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C
15 m
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D
20 m
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Solution
The correct option is
A
5 m
R
=
u
2
s
i
n
2
θ
g
=
80
√
3
⇒
40
2
s
i
n
2
θ
10
=
80
√
3
⇒
θ
=
30
0
H
=
u
2
s
i
n
2
θ
2
g
=
5
m
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0
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