A group of students is tasked with designing an experiment to find the final speed of a car that accelerates across the table from the starting point to the finish line. One student proposes the following idea: "All we need to do is measure the distance the car travels from the starting point to the finish line with a meter stick and the total time it takes using a stopwatch. Then d we can use the equation V = t to calculate the final speed as it crosses the finish line." What, if anything, is wrong with this student's idea? This will only calculate the average speed of the vehicle, not the final speed. This method will not work since the acceleration of the car is unknown. Based on the measurements taken, they should actually use the formula vf = at + vi Nothing is wrong, this idea will correctly determine the final speed of the car as it crossed the finish line.

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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A group of students is tasked with designing an experiment to find the final speed of
a car that accelerates across the table from the starting point to the finish line. One
student proposes the following idea:
"All we need to do is measure the distance the car travels from the starting point to
the finish line with a meter stick and the total time it takes using a stopwatch. Then
d
t to calculate the final speed as it crosses the
we can use the equation V =
finish line."
What, if anything, is wrong with this student's idea?
This will only calculate the average speed of the vehicle, not the final speed.
This method will not work since the acceleration of the car is unknown.
Based on the measurements taken, they should actually use the formula
vf = at + vi
Nothing is wrong, this idea will correctly determine the final speed of the car as
it crossed the finish line.
5
t
h
m
k
P
Transcribed Image Text:A group of students is tasked with designing an experiment to find the final speed of a car that accelerates across the table from the starting point to the finish line. One student proposes the following idea: "All we need to do is measure the distance the car travels from the starting point to the finish line with a meter stick and the total time it takes using a stopwatch. Then d t to calculate the final speed as it crosses the we can use the equation V = finish line." What, if anything, is wrong with this student's idea? This will only calculate the average speed of the vehicle, not the final speed. This method will not work since the acceleration of the car is unknown. Based on the measurements taken, they should actually use the formula vf = at + vi Nothing is wrong, this idea will correctly determine the final speed of the car as it crossed the finish line. 5 t h m k P
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