The positions of objects A and B are graphed in the following figure. Answer the following questions and explain. a. Is the acceleration of object A positive, negative, or zero at t=2sec? b. At t=2sec, is object B speeding up, slowing down, or moving with constant speed? c. Is the acceleration of object B positive, negative, or zero at t=2sec? d. Which object has the greater speed 200 100 -100 at t=11sec? B e. Find the average velocity of object B -200 for the 20 second interval shown. 10 12 14 16 18 20 Position (m) 4.
The positions of objects A and B are graphed in the following figure. Answer the following questions and explain. a. Is the acceleration of object A positive, negative, or zero at t=2sec? b. At t=2sec, is object B speeding up, slowing down, or moving with constant speed? c. Is the acceleration of object B positive, negative, or zero at t=2sec? d. Which object has the greater speed 200 100 -100 at t=11sec? B e. Find the average velocity of object B -200 for the 20 second interval shown. 10 12 14 16 18 20 Position (m) 4.
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter39: Relativity
Section: Chapter Questions
Problem 7PQ
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