P"8)
A
particle
moves
along
the
xaxis
so
that
is
position
atany
time
tis
given
by
x(A
=
B

62
+
91+
12,
During
what
times
is
the
speed
of
the
particle
increasing?
(U
han
iy
parhce
spgeding
up
A)
tclor2<¢t<3
Find
when
v)
and
a(®)
7!
g
a
horizontul
axis
so
that
its
12)
A
particle
moves
alon
)
pa

1\2.
tq"
,t3+'{'k.1
91;{'
'k?
position
is
defined
by
S(9
What
is
the
velocity
of
the
particle
at
the
time
its
acceleration
is
first
equal
to
zero?
.
A)
A0
Find
Ame
accelerabon
=
1<
t<20rt>3
have
the
same
signs.
B)':'a'
V(H:.é)t%_gjfw'#
C)
T(ZOI'f>3
A
b
2
q;o
'k"'%'
=0
Q)
T«
pe3
3(g%dx
D
70
3
e
e
of
#2
E)
felorh3
3(*'%""\):0
E)
7
a4
=0
Birsk
whan
£=%
Bty
e
e
WG
ao
\
3
atdl:
(rp
1220
Y
v(>
N
.
=
IS
Fer
BSEYE
RV
CERE
kS
9)
A
particle
moves
along
a
coordinate
Iisne
so
that
its
13)
A
particle
moves
along
a
horizontal
Co?rdi.nafe
line
position
is
given
by
5(A
=
{35
+4)"
_
for
so
that
its
position
at
time
#,0
=
#=
4
s
given
by
0=
#=10
Whatis
theacc)elemfion
of
the
particle
S(h=
74—137613
+
872
+
1.
For
what
times
#is
the
at1:2?
Find
ol
~
velocity
of
the
parficled
ing?

particle
decreasing
ke
>,
.
N
\'\
w
@
540
vit)
=
5(%\&4*{);
()
:C](gx»l)
2
\/cloca"j
of
parho(L
is
decreasing
ey
)
A)
3
1<
bis
&
mga'l\"'
stopx.?wluno.
B)
360
alg)z
(§(3x+0E)=
543
2
L

4
B)
P3
v
{4kt
+
ek
o
54
L)

54{10)
=
590

QAie
)
=
C)
0«<t<2
OL(#S

(1&2'31'1
4+
o
=O
b)
~
10
D)
0«74
S(3£7FE
+d)
2O
E)
2<1<4
N
£y

59
G(3p2)
(£2I=0
\
al))
paa48
——

=0
AAAS
14)
The
table
below
shows
velocity
of
a
particle
at
10)
A
parficle
moves
along
the
xaxis
in
such
a
way
that
various
times
#of
a
particle
that
moves
along
a
its
posifion
at
any
time
#is
given
by
x(H=
A
88+182
+2
for
>
0.
At
what
fime
is
acceleration
of
the
particle
equal
o
36?
A)
3
Find
whea
a(x)
=306
@
4
)

UEP
a6k
cD))
:2
ai4):
et
—diri36e=30
E)
)
I'Z,Ll""izt
LR
204
4120
co
]
£
R
E
j\
!

11)
A
particle
moves
on
the
xaxis
such
that
its
position
'\
atany
time
#>
0
is
given
by
x(H
=
B

92
+
24¢
What
is
the
velocity
of
the
particle
when
its
acceleration
is
zero?
A)
105
Find
hme
acelemhon
=0

C%
f:
VO]
=
34200
4
Ly

D)
3
altls
o
~IVIO
E)
0
k
2
al£)
=0
whkan
k=3
So
v(3)=
3
horizontal
line.
Vmso[
8302
88
[106]n.0
What
is
an
approximate
value
of
the
acceleration
of
the
particle
at
time
#=
22
CAD12
fi/sec?
what
is
Ve
appoximal
B)
0.8
ft/sec?
slope
of
V&)
ak
A=
C)
16
ft/sec?
D)
16
ft/sec?
E)
18
ft/sec?
AV
v
(@)
v(us)
At
<=
e
Q.S'Lf
=
l.