Why is it difficult ot maintain a grip over an oily cup or an ice cube?

Explanation

To understand why it is difficult to maintain a grip over an oily cup or an ice cube, we can break down the explanation into several steps:

### Step-by-Step Solution:

1. **Identify the Objects**: The question refers to two specific objects - an oily cup and an ice cube.

2. **Define the Problem**: The problem is that it is difficult to hold onto these objects without slipping.

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