A particle moves with speed in a direction that makes a angle north of east

PHYSICS · Subjective · AP · Physics 1: Algebra-based · Energy and Momentum of Rotating Systems · Energy and Momentum of Rotating Systems

Problem

0.80\,\text{kg}

particle moves with speed

6.0\,\text{m/s}

in a direction that makes a

30^{\circ}

angle north of east. At a particular instant the particle is

2.5\,\text{m}

due north of point

A

. Using the convention that counter-clockwise angular momentum is positive, calculate the

z

-component (sign included) of the particle’s angular momentum about point

A

at that instant.