Velocity is the rate of change of its position with respect to a frame or reference. As she first move 5 sec forward and come back for the 10 second as shown in the graph. Now she again moved forward and moved for 5 second with the constant speed. These condition is fulfilled by the graph 4. Thus option 4 is the correct option.
Given-
The Lisa moved her car in the following steps-
Lisa moved her car forward at a constant velocity for 5 seconds.
Lisa moved her car backward at a constant velocity for 10 seconds.
She moved her car forward at a constant velocity for 5 seconds.
What is velocity?
Velocity is the rate of change of its position with respect to a frame or reference in given time.
For the given problem the graph will be look like as in attached image. On the y axis of the graph we have plot the displacement of Lisa's car and the x axis of the graph we have plot the time taken to travel the distance by Lisa's car. Now we know that the velocity is the ration of displacement of an object to the time taken.
As by the option option 4 is correct as the she first move 5 sec forward and come back for the 10 second as shown in the graph. Now she again moved forward and moved for 5 second with the constant speed. These condition is fulfilled by the graph 4. Thus option 4 is the correct option.
Learn more about the velocity here;
https://brainly.com/question/862972
