Short computation The position of an object as a function of time is given by x(t) = bt2 - ct, where b = 2.2 m/s² and c = 7.1 m/s. What is the instantaneous velocity v of the object when t = 7.9 s? v = ______ m/s Remember to include a "-" if the velocity turns out to be negative. Do not include a "+" for a positive value. Report your numerical answer below, assuming three significant figures.

Physics for Scientists and Engineers with Modern Physics
10th Edition
ISBN:9781337553292
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter3: Vectors
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Problem 35AP: A person going for a walk follows the path shown in Figure P3.35. The total trip consists of four...
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Short computation
The position of an object as a function of time is given by x(t) = bt2 - ct, where b = 2.2 m/s² and c =
7.1 m/s.
What is the instantaneous velocity v of the object when t = 7.9 s?
v=
m/s
Remember to include a "-" if the velocity turns out to be negative. Do not include a "+" for a positive value.
Report your numerical answer below, assuming three significant figures.
Transcribed Image Text:Short computation The position of an object as a function of time is given by x(t) = bt2 - ct, where b = 2.2 m/s² and c = 7.1 m/s. What is the instantaneous velocity v of the object when t = 7.9 s? v= m/s Remember to include a "-" if the velocity turns out to be negative. Do not include a "+" for a positive value. Report your numerical answer below, assuming three significant figures.
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