### flp flP - Math with Ms. Montgomery

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Ch. 5
i
A particle moves along the x-axis so that, at any time t> 0 ,
its acceleration is given by a(t) = 61 + 6 . At time 1=0, the
v e l o c i t y of the particle is -9, and its position is -27.
A)
B)
C)
Find v(t), the.-Y€tocity of the particle at any time t > 0
For what values of t>0 is the particle moving to the
right?
Find x(t), the position of the particle at any. time t> 0
RR
2.
Determine a, b, c, and d so that the graph of
y = ax3 + bx 2 * cx + d nas a point O f inflection at the origin
and a relative maximum at the point (2,4). Sketch the graph
flp
3:
The volume V of a cylinder is increasing at the rate of 307T
cubic units per second. At the instant when the radius r'
of the cylinder is 2 units, its volume is 12TT cubic units and
the radius is increasing at 1/3 units per second.
A)
B)
C)
At the instant, when the radius of thecvi'«* r is 2 units,
what is the rate of change of the area of its base.
At the instant when the radius of thecyW^is 2 units,
what is the rate of change of its height h.
At the instant when the radius of the c^^ris 2 units,
what is the instantaneous rate of change of the area
of its base with respect to its height h?
flP
4.
At time 1=0, a train is going at a velocity of 1000 meters
per minute. The train is slowing down with a negative
acceleration that is directly proportional to time t. This
brings the train to a stop in 5 minutes.
"
A)
Write an expression for the velocity of the train at
time t.
B)
What is the total distance traveled by the train in that
5 minute interval?
~
5
A function f
following 3
i)
11)
is defined for all real numbers and has the
properties
f(1) = 5
f(3) = 21
for all real values of a and b
f(a+b) - f(a) = kab + 2b2 where k is a fixed real
number independent of a and b
A)
use e=1 end b=2 to find the value of k
B)
C)
Find f(x)
Find f(3)
ftP
£^.5
6.
f(x) = x 3 - 7 x + 6
Find the average value of y that
satisfies the mam Value Theorem on [1,31
7.
A particle moves along the x-axis so that, at any time t>0, its
acceleration is given by a(t) = 81-8'
At time 1=0, the velocity of the particle is
-12
A)
Find v(t), the velocity of the particle at any time t> 0
B)
For what values of t> 0 is the particle moving to the
left?
C)
Find x.(l), the position of the particle at any time t> 0,
if the position is 14 when 1=3
. .
11
8
f(x) =4 x-2 x2
A)
Domain
B) Range
C)
For what values of x is the function continuous?
D)
For what values of x is the derivative continuous?
5
A particle moves along the x-axis so its velocity at any time
t>0 is given by v(t) = zt2 -»-4t-48
A)
B)
C)
Find acceleration a(t)
Find all values of t for which the particle is at rest
Find the postion x(t) if x(0) = -1
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Ch. 5
#
5
A particle, initially at rest, moves along the y-axis so that its acceleration at any time i £ 0 is given
by a(/) = 12r2 — 4. The position of the particle when r =» 1 is x(\) « 3.
(a) Find the values of r for which the particle is at rest.
(b) Write an expression for the position *(/) of the particle at any time t £ 0.
(c) Find the total distance traveled by the particle from / » 0 to / = 2.
12..
. Let / be the function given by f (x) = v.v 4 - 16.v2 .
(a) Find the domain of/.
(b) Describe the symmetry, if any, of the graph of /.
(c) Find/'(jc).
(d) Find the slope of the line normal to the graph of / at x = 5.
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