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Physics
A particle is projected at an angle of 30° with the horizontal with a momentum P. At the highest point its momentum is
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Q. A particle is projected at an angle of $30^{\circ}$ with the horizontal with a momentum P. At the highest point its momentum is
COMEDK
COMEDK 2012
A
$\frac{\sqrt{3}}{4} P $
20%
B
$\frac{2}{\sqrt{3}} P $
60%
C
$P$
20%
D
$\frac{1}{2}P$
0%
Solution:
$P = mu $
$P^1 = m ( u \, \cos \theta)$
$ = mu \frac{\sqrt{3}}{2} = \frac{P \sqrt{3}}{2}$