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BITSAT 2022 Solved Question Paper
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© examsnet.com
Question : 12
Total: 130
a particle of mass
m
is projected with velocity
v
at an angle
θ
with the horizontal. At its highest point, it explodes into two pieces of equal mass, one of the piece continue to move on the original trajectory, then the velocity of second piece is.
2
v
cos
θ
v
cos
θ
3
v
cos
θ
v
2
cos
θ
Validate
Solution:
👈: Video Solution
According to the law of conservation of linear momentum at the highest point,
m
v
c
o
s
θ
=
m
2
(
v
c
o
s
θ
)
+
m
2
v
′
⇒
m
v
c
o
s
θ
=
m
2
v
c
o
s
θ
=
m
2
v
′
⇒
v
′
=
2
(
v
c
o
s
θ
−
v
c
o
s
θ
2
)
=
v
c
o
s
θ
© examsnet.com
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