The points X, Y and Z lie on a rough, horizontal surface. A box P is pushed over the surface from X to Y and then from Y to Z. The distance from X to Y is $3.0\,\text{m}$. The work done against the frictional force in moving the box from X to Y is $150\,\text{J}$. The work done against the frictional force in moving the box from Y to Z is $200\,\text{J}$. An identical box Q is pushed in a straight line from X to Z. The size of the frictional force between the boxes and the surface remains constant. How much more work is done against the frictional force in moving P than Q?
- A$100\,\text{J}$
- B$250\,\text{J}$
- C$350\,\text{J}$
- D$600\,\text{J}$