(a) Find the body's displacement and average velocity for the given time interval. Displacement = m Average velocity = m/s (b) Find the body's velocity at the endpoints of the interval. Velocity at t = 0 is m/s Velocity at t = 3 is m/s (c) Find the body's acceleration at the endpoints of the interval. Acceleration at t = 0 is m/s? Acceleration at t = 3 is m/s? (d) When, if ever, during the interval does the body change direction? If there is more than one answer, enter a comma separated list. If the body never changes direction during the interval, enter NONE.
(a) Find the body's displacement and average velocity for the given time interval. Displacement = m Average velocity = m/s (b) Find the body's velocity at the endpoints of the interval. Velocity at t = 0 is m/s Velocity at t = 3 is m/s (c) Find the body's acceleration at the endpoints of the interval. Acceleration at t = 0 is m/s? Acceleration at t = 3 is m/s? (d) When, if ever, during the interval does the body change direction? If there is more than one answer, enter a comma separated list. If the body never changes direction during the interval, enter NONE.
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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Answer parts A, B, C and D
Transcribed Image Text:The position of a body moving on a coordinate line is given by s = t² – 4t – 1 for 0 <t<
with s in meters and t in seconds.
(a) Find the body's displacement and average velocity for the given time interval.
Displacement =
m
Average velocity =
m/s
(b) Find the body's velocity at the endpoints of the interval.
Velocity at t = 0 is
m/s
Velocity at t = 3 is
m/s
(c) Find the body's acceleration at the endpoints of the interval.
Acceleration at t = 0 is
O is
m/s?
Acceleration at t = 3 is
m/s?
(d) When, if ever, during the interval does the body change direction? If there is more than
one answer, enter a comma separated list. If the body never changes direction during the
interval, enter NONE.
t =
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