plZ solve this qus.. frnds
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Initial relative velocity v
A
−v
B
, is reduced to 0 in distance d
′
(<d) with retardation a.
∴0
2
−(v
A
−v
B
)
2
=2ad
′
∴d
′
=
2a
(v
A
−v
B
)
2
∴d>
2a
(v
A
−v
B
)
2
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