When a person pedals a bicycle, the front sprocket moves a chain that drives the back wheel and propels the bicycle forward. For each rotation of the front sprocket the chain moves a distance equal to the circumference of the front sprocket. The back sprocket is smaller, so it will simultaneously move through a greater rotation. Furthermore, since the back sprocket is rigidly connected to the back wheel, each rotation of the back sprocket generates a rotation of the wheel. Suppose that the front sprocket of a bicycle has a 4 -in . radius and the back sprocket has a 2 -in . radius. a. How much chain will move with one rotation of the pedals (front sprocket)? b. How many times will the back sprocket turn with one rotation of the pedals? c. How many times will the wheels turn with one rotation of the pedals? d. If the wheels are 27 in . in diameter, how far will the bicycle travel with one rotation of the pedals? e. If the bicyclist pedals 80 rpm , what is the linear speed (in ft/min) of the bicycle? f. If the bicyclist pedals 80 rpm , what is the linear speed (in mph) of the bicycle?
When a person pedals a bicycle, the front sprocket moves a chain that drives the back wheel and propels the bicycle forward. For each rotation of the front sprocket the chain moves a distance equal to the circumference of the front sprocket. The back sprocket is smaller, so it will simultaneously move through a greater rotation. Furthermore, since the back sprocket is rigidly connected to the back wheel, each rotation of the back sprocket generates a rotation of the wheel. Suppose that the front sprocket of a bicycle has a 4 -in . radius and the back sprocket has a 2 -in . radius. a. How much chain will move with one rotation of the pedals (front sprocket)? b. How many times will the back sprocket turn with one rotation of the pedals? c. How many times will the wheels turn with one rotation of the pedals? d. If the wheels are 27 in . in diameter, how far will the bicycle travel with one rotation of the pedals? e. If the bicyclist pedals 80 rpm , what is the linear speed (in ft/min) of the bicycle? f. If the bicyclist pedals 80 rpm , what is the linear speed (in mph) of the bicycle?
When a person pedals a bicycle, the front sprocket moves a chain that drives the back wheel and propels the bicycle forward. For each rotation of the front sprocket the chain moves a distance equal to the circumference of the front sprocket. The back sprocket is smaller, so it will simultaneously move through a greater rotation. Furthermore, since the back sprocket is rigidly connected to the back wheel, each rotation of the back sprocket generates a rotation of the wheel.
Suppose that the front sprocket of a bicycle has a
4
-in
. radius and the back sprocket has a
2
-in
. radius.
a. How much chain will move with one rotation of the pedals (front sprocket)?
b. How many times will the back sprocket turn with one rotation of the pedals?
c. How many times will the wheels turn with one rotation of the pedals?
d. If the wheels are
27
in
.
in diameter, how far will the bicycle travel with one rotation of the pedals?
e. If the bicyclist pedals
80
rpm
, what is the linear speed (in ft/min) of the bicycle?
f. If the bicyclist pedals
80
rpm
, what is the linear speed (in mph) of the bicycle?
A graph of the function f is given below:
Study the graph of ƒ at the value given below. Select each of the following that applies for the value a = 1
Of is defined at a.
If is not defined at x = a.
Of is continuous at x = a.
If is discontinuous at x = a.
Of is smooth at x = a.
Of is not smooth at = a.
If has a horizontal tangent line at = a.
f has a vertical tangent line at x = a.
Of has a oblique/slanted tangent line at x = a.
If has no tangent line at x = a.
f(a + h) - f(a)
lim
is finite.
h→0
h
f(a + h) - f(a)
lim
h->0+
and lim
h
h->0-
f(a + h) - f(a)
h
are infinite.
lim
does not exist.
h→0
f(a+h) - f(a)
h
f'(a) is defined.
f'(a) is undefined.
If is differentiable at x = a.
If is not differentiable at x = a.
The graph below is the function f(z)
4
3
-2
-1
-1
1
2
3
-3
Consider the function f whose graph is given above.
(A) Find the following. If a function value is undefined, enter "undefined". If a limit does not exist, enter
"DNE". If a limit can be represented by -∞o or ∞o, then do so.
lim f(z)
+3
lim f(z)
1-1
lim f(z)
f(1)
= 2
=
-4
= undefined
lim f(z) 1
2-1
lim f(z):
2-1+
lim f(x)
2+1
-00
= -2
= DNE
f(-1) = -2
lim f(z) = -2
1-4
lim f(z)
2-4°
00
f'(0)
f'(2)
=
=
(B) List the value(s) of x for which f(x) is discontinuous. Then list the value(s) of x for which f(x) is left-
continuous or right-continuous. Enter your answer as a comma-separated list, if needed (eg. -2, 3, 5). If
there are none, enter "none".
Discontinuous at z =
Left-continuous at x =
Invalid use of a comma.syntax incomplete.
Right-continuous at z =
Invalid use of a comma.syntax incomplete.
(C) List the value(s) of x for which f(x) is non-differentiable. Enter your answer as a comma-separated list,
if needed (eg. -2, 3, 5).…
A graph of the function f is given below:
Study the graph of f at the value given below. Select each of the following that applies for the value
a = -4.
f is defined at = a.
f is not defined at 2 = a.
If is continuous at x = a.
Of is discontinuous at x = a.
Of is smooth at x = a.
f is not smooth at x = a.
If has a horizontal tangent line at x = a.
f has a vertical tangent line at x = a.
Of has a oblique/slanted tangent line at x = a.
Of has no tangent line at x = a.
f(a + h) − f(a)
h
lim
is finite.
h→0
f(a + h) - f(a)
lim
is infinite.
h→0
h
f(a + h) - f(a)
lim
does not exist.
h→0
h
f'(a) is defined.
f'(a) is undefined.
If is differentiable at x = a.
If is not differentiable at x = a.
University Calculus: Early Transcendentals (4th Edition)
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