If the occupants of the vehicle are not wearing a seat belt, they will continues moving forward at the same speed when brake is applied.
Newton's first law of motion states that an object at rest or uniform motion in a straight line will continue in that form unless it is acted upon by an external force.
The law is also called the law of inertia.
Thus, if the occupants of the vehicle are not wearing a seat belt, they will continues moving forward at the same speed when brake is applied.
Learn more about inertia here: https://brainly.com/question/1140505
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