The graph shows the speedometer reading of a car as it comes to a stop along a straight-line path.How far does the car move between t = 0 s and t = 16 s?
A) 130 m
B) 140 m
C) 150 m
D) 160 m

Question

The graph shows the speedometer reading of a car as it comes to a stop along a straight-line path.How far does the car move between t = 0 s and t = 16 s? 
A) 130 m 
B) 140 m 
C) 150 m 
D) 160 m

Quizplus · Accepted Answer

The distance travelled by the car is equal to the area under the graph. Using the trapezoidal rule to approximate the area gives:

Area = (1/2)(60 m/s + 40 m/s)(16 s - 0 s) = 800 m/s

Therefore, the distance travelled by the car is approximately 800 m/s = 160 m. Therefore, the correct answer is choice D) 160 m.

The Graph Shows the Speedometer Reading of a Car as It