A toy car of mass moves eastward at while

PHYSICS · Single correct · AP · Physics 1: Algebra-based · Linear Momentum · Linear Momentum

Problem

A toy car of mass

0.4\,\text{kg}

moves eastward at

6\,\text{m/s}

while, at the same instant, a marble of mass

0.1\,\text{kg}

moves northward at

8\,\text{m/s}

. What is the magnitude of the combined momentum of the two objects? (a)

3.2\,\text{kg}\cdot\text{m/s}

(b)

1.6\,\text{kg}\cdot\text{m/s}

(c)

2.5\,\text{kg}\cdot\text{m/s}

(d)

2.4\,\text{kg}\cdot\text{m/s}