Consider the following five graphs (note the axes carefully). Which of these represents
motion at constant speed?
To determine which graph represents motion at constant speed, we need to look for a graph that shows a linear relationship between distance and time. In other words, we are looking for a graph that has a straight line.
Let's examine each graph and analyze if it represents motion at constant speed:
Graph 1: The distance covered by the object is increasing at a uniform rate over time. Therefore, this graph represents motion at constant speed.
Graph 2: The distance covered by the object is increasing at an increasing rate over time. This graph does not represent motion at constant speed.
Graph 3: The distance covered by the object is decreasing at a uniform rate over time. This graph does not represent motion at constant speed.
Graph 4: The distance covered by the object is increasing at a decreasing rate over time. This graph does not represent motion at constant speed.
Graph 5: The distance covered by the object is decreasing at an increasing rate over time. This graph does not represent motion at constant speed.
Based on this analysis, Graph 1 represents motion at constant speed.