Final answer:
The correct answer is C) Roll for less friction.
Step-by-step explanation:
The correct answer is C) Roll for less friction.
When a barrel is rolled up an inclined plane, there is less friction compared to lifting it. This is because when the barrel is lifted, there is a larger contact area between the barrel and the surface, resulting in more friction. On the other hand, when the barrel is rolled, only a small portion of the barrel comes in contact with the surface, reducing the friction.
For example, if you have a heavy barrel and you try to lift it up an inclined plane, you will have to exert a lot of force to overcome the friction. However, if you roll the barrel up the inclined plane, you can use less force since the friction is reduced.