Question

A slab of concrete of length L = 2.0 m is supported by rollers. If the slab is pushed to the right, it will move off the supporting rollers, one by one, on the left side.How far can the slab be moved before its center of gravity is to the right of the contact point with the rightmost roller − at which point the slab begins to tip?

Answer 1

The slab of concrete can be moved 1 meter before it starts to tip.

Step-by-step explanation:

To determine how far the slab of concrete can be moved before it begins to tip, we need to consider the center of gravity of the slab and the position of the contact point with the rightmost roller. When the slab starts to tip, the center of gravity will be directly above the contact point with the roller.

To calculate this distance, we need to find the location of the center of gravity. Assuming the slab has uniform density, the center of gravity will be at the midpoint of the slab. Therefore, the distance that the slab can be moved before it starts to tip is half of its length, which is L/2 = 2.0/2 = 1.0 m.