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Rotational Motion question

2010 · Shift 0 · Q62

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JEE Main
Physics
Rotational Motion
2010 · Shift 0 · Q62

Rotational Motion question

2010 · Shift 0 · Q62

JEE MainPhysicsRotational MotionMCQ+4 / −1

A small particle of mass

m

is projected at an angle

\theta

with the

x

-axis with an initial velocity

{v_0}

in the

x

-

y

plane as shown in the figure. At a time

t \lt {{{v_0}\sin \theta } \over g},

the angular momentum of the particle is ................, AIEEE 2010 Physics - Rotational Motion Question 205 English

AIEEE 2010 Physics - Rotational Motion Question 205 English

where

\widehat i,\widehat j

and

\widehat k

are unit vectors along

x,y

and

z

-axis respectively.

A
$- mg\,{v_0}{t^2}\cos \theta \widehat j$
B
$mg\,{v_0}t\cos \theta \widehat k$
C
$- {1 \over 2}mg\,{v_0}{t^2}\cos \,\theta \widehat k$
D
${1 \over 2}mg\,{v_0}{t^2}\cos \theta \widehat i$

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