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JEE Mains 31-Jan-2023 Shift 2 Solved Paper
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© examsnet.com
Question : 30
Total: 90
Two bodies are projected from ground with same speeds
40
ms
−
1
at two different angles with respect to horizontal. The bodies were found to have same range. If one of the body was projected at an angle of
60
∘
, with horizontal then sum of the maximum heights, attained by the two projectiles, is ________
m
. (Given
g
=
10
ms
−
2
)
[31-Jan-2023 Shift 2]
Your Answer:
Validate
Solution:
Since range is same.
⇒
θ
1
+
θ
2
=
90
∘
⇒
θ
2
=
30
∘
⇒
(
H
max
)
1
+
(
H
max
)
2
=
u
2
s
i
n
2
θ
1
2
g
+
u
2
s
i
n
2
θ
2
2
g
=
40
2
20
(
1
4
+
3
4
)
=
80
m
© examsnet.com
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