Which of the following are not correct?
Every object moves with a constant speed.

Explanation

To determine whether the statement "Every object moves with a constant speed" is correct or not, let's analyze it step by step.

### Step 1: Understanding the Statement
The statement claims that every object moves with a constant speed. This means that the speed of every object remains the same throughout its motion.

**Hint:** Consider whether all objects in motion maintain the same speed at all times.

### Step 2: Analyzing Motion
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