A particle moves according to a law of motion s = (t), 0 sts 12, where t is measured in seconds and s in feet. Re) = cos(mt/6) (a) Find the velocity at time t (in ft/s). v(t) = (b) What is the velocity after 1 s? (Round your answer to two decimal places.) v(1) = t/s (c) When is the particle at rest? Js (smallest value) s (largest value)

Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter1: Introduction And Vectors
Section: Chapter Questions
Problem 51P: A person going for a walk follows the path shown in Figure P1.51. The total trip consists of four...
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A particle moves according to a law of motion s = (t), osts 12, where t is measured in seconds and s in feet.
(1) = cos(t/6)
(a) Find the velocity at time t (in ft/s).
v(t) =
(b) What is the velocity after 1 s? (Round your answer to two decimal places.)
v(1) =
R/s
(c) When is the particle at rest?
s (smallest value)
s (largest value)
(d) When is the particle moving in the positive direction? (Enter your answer using interval notation.)
(e) Find the total distance traveled during the first 12 s.
(1) Find the acceleration at time t (in ft/s).
a(t) =
Find the acceleration after 1 s. (Round your answer to two decimal places.)
a(1) =
|rt/s2
(9) Graph the position, velocity, and acceleration functions for 0 sts 12.
y
y.
1.0
1.0
is
0.5
0.5
9.
To
9.
To
12
-0.5
-0.5
-1.0
-1.0
1.0
1.0
0.5
0.5
12
4
-0.5
-0.5
-1.0
-1.0
(h) When is the particle speeding up? (Enter your answer using interval notation.)
When is it slowing down? (Enter your answer using interval notation.)
Transcribed Image Text:A particle moves according to a law of motion s = (t), osts 12, where t is measured in seconds and s in feet. (1) = cos(t/6) (a) Find the velocity at time t (in ft/s). v(t) = (b) What is the velocity after 1 s? (Round your answer to two decimal places.) v(1) = R/s (c) When is the particle at rest? s (smallest value) s (largest value) (d) When is the particle moving in the positive direction? (Enter your answer using interval notation.) (e) Find the total distance traveled during the first 12 s. (1) Find the acceleration at time t (in ft/s). a(t) = Find the acceleration after 1 s. (Round your answer to two decimal places.) a(1) = |rt/s2 (9) Graph the position, velocity, and acceleration functions for 0 sts 12. y y. 1.0 1.0 is 0.5 0.5 9. To 9. To 12 -0.5 -0.5 -1.0 -1.0 1.0 1.0 0.5 0.5 12 4 -0.5 -0.5 -1.0 -1.0 (h) When is the particle speeding up? (Enter your answer using interval notation.) When is it slowing down? (Enter your answer using interval notation.)
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