# What Makes the Difference in the Speed if Cans of Soup are Rolled Down the Ramp?

What Makes the Difference in the Speed if Cans of Soup are Rolled Down the Ramp?

When several cans containing soup are rolled down the ramp, they go with different speed.  What makes the difference then?  Well, the speed varies in velocity depending on the content of the cans.  If solid contents are placed inside the cans, they will produce the same angular speed on the inside and on the outside.

When you put liquid inside the cans, they will move differently on the inside.  If several materials of different kinds are placed inside the cans, they can produce different interactions.  The materials with heavier weights will remain at the bottom of the cans causing the reduction in rotating capability of the cans.

Based on Physics, the rotational angular capability of heavy materials are faster in sliding procedure rather than in rotation movement because of gravity that pulls heavier objects.  In the rotation process, the heavy materials contained in the cans impede the ability of the cans to roll in their surface faster while in sliding, the heavier the weight of the cans are, the faster they can slide on their surface.

There is a slight difference when you roll down wheels in inclined planes compared to cans of soup.  The wheels can roll down at the same speed depending on the manner that they were released from the momentum of inertia.  When cans which contain fluids are rotated from a ramp, the movement of fluids inside a rolling cylinder can be measured thru viscosity.

On the other hand, when the cans contain solid objects, they can cause a friction sliding against the surface of the cans that causes slowing down of its rolling capability.  Now, take the case of several cans filled with water, molasses, sand, soup, and so on.

When you roll them in a ramp assuming that they vary in size and each can is full of content, you will notice that the cans which are heavier move slower in downward movement than the lighter ones and they will stop at a limited distance whey they hit the ground compared to lighter cans which can roll at longer distance.

Now let’s go to sliding experiment.  When you let objects to slide down a ramp, the weights are pulled down by gravity to the center of the earth.  Therefore, based on Newton’s Law, all materials will slide down the inclined plane regardless of the weight or size of the objects, at the same rate of speed.  But what about hoops, empty cans, hollow sphere and solid sphere?  Hoops will produce the same rate of velocity regardless of mass or weight.  Same is true with empty cans placed in a row.  This is also applicable to hollow and solid sphere.

Why?  Because as Newton’s Law indicates, all objects regardless of size or mass have the same rate of acceleration.  But if you place these objects in competition, you will find out that empty cans will beat hoops and hollow spheres will beat solid spheres.

This is because the Law of Physics states that the acceleration of the objects in any inclined surface does not depend on the mass but on how the mass is distributed.

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