12/14/16, 4(11 PM
hw11S3.4
Current Score :
49 / 49
Due :
Wednesday, October 26 2016 11:59 PM PDT
1.
4/4 points |
Previous Answers
An object is moving back and forth on the
x
-axis according to the equation
x
(
t
) = 3sin(20
π
t
),
t> 0
where
x(t)
is measured in cm and
t
in seconds. Give decimal answers below.
(a) How many complete back-and-forth motions (from the origin to the right, back to the origin,
to the left and finally back to the origin) does the object make in one second?
,
10
hw11S3.4 (Homework)
JAE HYUN PARK
Math 124, section D, Fall 2016
Instructor: Dmitriy Drusvyatskiy
WebAssign
The due date for this assignment is past.
Your work can be viewed below, but no changes can be made.

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(b) What is
t

(c) At the time found in part (b), what is the object's velocity?
0
0

(d) At the time found in part (b), what is the object's acceleration?

12/14/16, 4(11 PM
hw11S3.4
Page 2 of 13
2.
2/2 points |
Previous Answers
SCalcET7 3.4.001.
Write the composite function in the form
[Identify the inner function
and the outer
function
Find the derivative
dy
/
dx
.
)
3
u
du
dx
1
3
3

12/14/16, 4(11 PM
hw11S3.4
Page 3 of 13