The position of the front bumper of a test car under microprocessor control is given by x(t)=2.17m+(4.80m/s2)t2−(0.100m/s6)t6x(t)=2.17m+(4.80m/s2)t2−(0.100m/s6)t6. Disregard instants corresponding to negative tt values. A. Find its position at the first instant when the car has zero velocity. Express your answer in meters. x=___m B. Find its acceleration at the first instant when the car has zero velocity. Express your answer in meters per second squared. ax=________m/s2 c. Find its position at the second instant when the car has zero velocity. Express your answer in meters. x=______________m D. Find its acceleration at the second instant when the car has zero velocity. Express your answer in meters per second squared.

The position of the front bumper of a test car under microprocessor control is given by x(t)=2.17m+(4.80m/s2)t2−(0.100m/s6)t6x(t)=2.17m+(4.80m/s2)t2−(0.100m/s6)t6. Disregard instants corresponding to negative tt values. A. Find its position at the first instant when the car has zero velocity. Express your answer in meters. x=_m B. Find its acceleration at the first instant when the car has zero velocity. Express your answer in meters per second squared. ax=m/s2 c. Find its position at the second instant when the car has zero velocity. Express your answer in meters. x=________m D. Find its acceleration at the second instant when the car has zero velocity. Express your answer in meters per second squared.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter2: One Dimensional Motion

Section: Chapter Questions

Problem 77PQ

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