Two identical carts are launched on a frictionless horizontal track

PHYSICS · Subjective · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

Two identical

2.0\,\text{kg}

carts are launched on a frictionless horizontal track. Cart A moves at

3.0\,\text{m/s}

due east, and Cart B moves at

4.0\,\text{m/s}

due north. Determine the magnitude of the system’s total linear momentum and state its direction measured as an angle north of east.