Question

speed problems which shows a car that is slowing down?

Explanation:

Step1: Recall speed - distance - time relationship

Speed is the rate of change of distance with respect to time. A car slowing down has a decreasing speed over time.

Step2: Analyze each graph

• In the first graph (top - left), the slope of the distance - time graph is decreasing. The slope of a distance - time graph represents speed. As the slope decreases, the speed of the car decreases, which means the car is slowing down.
• In the second graph (top - right), the distance is constant over time, so the car is stationary.
• In the third graph (bottom - left), the distance is decreasing over time at a constant rate, which means the car is moving in the opposite direction at a constant speed.
• In the fourth graph (bottom - right), the distance is increasing at a constant rate, so the car is moving at a constant speed.

Answer:

The top - left graph shows a car that is slowing down.