The distance traveled by a car in the x-direction is shown.When the car changes speed for t = 10 s to 15 s,it does so uniformly.Use the graph below to answer the question.
-The speed of the car at 5 s is
A)5 m/s
B)7.5 m/s
C)10 m/s
D)12.5 m/s
E)15 m/s

Question

The distance traveled by a car in the x-direction is shown.When the car changes speed for t = 10 s to 15 s,it does so uniformly.Use the graph below to answer the question. 
-The speed of the car at 5 s is
A)5 m/s 
B)7.5 m/s 
C)10 m/s 
D)12.5 m/s 
E)15 m/s

Quizplus · Accepted Answer

From the graph, we can see that the distance traveled by the car in the x-direction at 5 s is approximately 25 m. As the car moves with a constant velocity over this time period, we can find the speed of the car at this time by dividing the distance traveled by the time taken.

speed = distance/time = 25 m / 5 s = 5 m/s

Therefore, the speed of the car at 5 s is 5 m/s, which is choice A).

The Distance Traveled by a Car in the X-Direction Is