Physics

Problem

A horizontal force of

12\,\text{N}

is applied to a

4\,\text{kg}

cart that is lightly connected by a string to a

2\,\text{kg}

cart on a frictionless track. While the force is applied, what is the magnitude of the acceleration of the center of mass of the two-cart system? a)

3.0\,\text{m}\!/\!\text{s}^2

2.0\,\text{m}\!/\!\text{s}^2

1.5\,\text{m}\!/\!\text{s}^2

4.0\,\text{m}\!/\!\text{s}^2