Question

Please help me with these questions

represented by the following arrow What is the relationship between a one-dimensional vector and the sign of velocity? This depends on the wa choose to set the positive x axis. Diagram 1 Diagram 2 Positive velocity Negalive velocity 0 Negative velocity Positive velocity In both diagrams above, the top vectors represent velocity toward the right. In diagram 1, the x axis has been drawn so that the positive x direction is toward the right, as it is usually drawn. Thus the top arrow represents positive velocity However, in diagram 2, the positive x direction is toward the left. Thus the top arrow represents negative velocity. Likewise, in both diagrams the bottom arrows represent velocity toward the left. In diagram 1 this is negative velocity, and in diagram 2 Question 2-3: Sketch below velocity vectors representing the three parts of the motion described in Prediction 2-1. Walking slowly away from the detector: Standing still: Walking rapidly toward the detector: Matching a Velocity Graph Activity 2-2 In this activity, you will try to move to match a velocity graph shown on the computer screen. This is often much harder than matching a position graph as you did in the previous investigation. Most people find it quite a challenge at first to move so as to match a velocity graph. In fact, some velocity graphs that can be invented cannot be matched! 1. Open the experiment file L01A2-2 (Velocity Match). The .velocity graph shown below will appear on the screen. luction to motion

Answer 1

Your velocity time graph is correct . It will be a straight line at 1 m/s till 2.5 seconds then it will be zero till the end.

3-1) if we moved faster, the slope of position time graph will be more. If we moved slower the slope of position time graph will be less.

3-2) if we moved faster then parts of graph where velocity was positive would be more positive. If we moved slower the velocity would be more narrow and closer to zero. It means for faster motion, the horizontal line will be higher (more positive) and for slower motion, horizontal line will be lower (less positive)