Placing additional discs on the car increases its mass, which, according to Newton's second law (F=ma), will result in a lower acceleration for the same applied force since acceleration is inversely proportional to mass. Consequently, the car will accelerate less than it would with the original mass, affecting its velocity over time.
Students are using the experimental setup shown in the image in which the two ends of a string are attached to a car and to a hanger. The students conduct three trials in which they place metal discs on the hanger to manipulate the force applied to the car. As a result, the car accelerates along the table while two probes collect motion data. On the fourth trial of this experiment, a student places some discs on the car by mistake. In 1-2 sentences explain how this change the acceleration or velocity
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