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Physics
Physics
Problem
A bullet looses
(
1
n
)
t
h
\left(\frac{1}{n}\right)^{th}
(
n
1
)
t
h
of its velocity passing through one plank. The number of such planks that are required to stop the bullet can be: a.
n
2
2
n
−
1
\frac{n^2}{2n-1}
2
n
−
1
n
2
b.
2
n
2
n
−
1
\frac{2n^2}{n-1}
n
−
1
2
n
2
c. infinite d.
n
n
n
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