Each time the man stopped and took a break, what happened to the line on the Velocity-Time Graph (Red Graph). Explain why.
When the man stopped and took a break, the line on the Velocity-Time Graph (Red graph) dropped, indicating that the velocity of the man decreased during those breaks.
This happens because velocity is defined as the rate of change of displacement with respect to time, meaning it measures how fast an object is moving and in which direction. When the man stops and takes a break, his motion is halted, and hence his velocity becomes zero because there is no change in his displacement during that time. As a result, the line on the Velocity-Time Graph drops to zero or near-zero during the breaks.
To understand what happens to the line on the Velocity-Time graph (the red graph) each time the man stops and takes a break, we need to consider the relationship between velocity and time.
In a Velocity-Time graph, the slope of the line represents acceleration, which is defined as the rate of change of velocity. So if the line on the Velocity-Time graph is flat (horizontal), it means that there is no change in velocity, indicating that the object's speed remains constant.
Now, when the man stops and takes a break, it means that he is not moving, and therefore his velocity is zero. As a result, on the Velocity-Time graph, the line will become flat (horizontal) at the point where he stops. This flat line represents the period of time during which the man is at rest or not changing his velocity.
In other words, when there is no movement (i.e., the man is at rest), the velocity is zero, and this is depicted by a horizontal line on the Velocity-Time graph. This is because there is no change in velocity over time.
In summary, each time the man stops and takes a break, the line on the Velocity-Time graph (the red graph) becomes flat (horizontal) to indicate that his velocity is zero during that period of time.