Physics

Problem

Cart X has mass

2\,\text{kg}

and moves

1\,\text{m/s}

to the right. Cart Y has mass

1\,\text{kg}

and moves

3\,\text{m/s}

to the left. Which statement correctly compares the magnitudes of their linear momenta? a)

|\vec p_X| = |\vec p_Y|

|\vec p_Y| > |\vec p_X|

|\vec p_X| > |\vec p_Y|

d) The magnitudes cannot be compared without knowing the directions.