A 100 kg cubical box lies on a floor. A child pushes horizontally at a top edge. What force magnitude puts the box on the verge of tipping over if there is sufficient friction between it and the floor to prevent sliding?

Explanation

To solve the problem of determining the force magnitude that puts a 100 kg cubical box on the verge of tipping over when pushed horizontally at a top edge, we can follow these steps:

### Step 1: Understand the System
We have a cubical box with a mass of 100 kg resting on the floor. The box can tip over when a horizontal force is applied at its top edge. The weight of the box acts downwards at its center of gravity.

### Step 2: Identify Forces Acting on the Box
- The weight of the box (W) = mass (m) × gravitational acceleration (g).
- The gravitational acceleration (g) is approximately 9.81 m/s².
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