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of McGraw-Hill, and must be surrendered upon request of McGraw-Hill. Any duplication or distribution, either in print or electronic form, without the
permission of McGraw-Hill, is prohibited.
Dynamics 2e 1311
Problem 6.118
For the slider-crank mechanism shown, let
RD0:75
m and
HD2
m, and let the length of bar
BC
be
LBC D3:25 m.
Assuming that
P
is constant, determine the expression of the angular acceleration of the slider as a
function of and P
(and the accompanying geometrical parameters).
of McGraw-Hill, and must be surrendered upon request of McGraw-Hill. Any duplication or distribution, either in print or electronic form, without the
permission of McGraw-Hill, is prohibited.
which, upon expanding the products in the numerator, can be simplified to
2R2H2sin
of McGraw-Hill, and must be surrendered upon request of McGraw-Hill. Any duplication or distribution, either in print or electronic form, without the
permission of McGraw-Hill, is prohibited.
Dynamics 2e 1313
Problem 6.119
For the slider-crank mechanism shown, let
RD0:75
m and
HD2
m, and let the length of bar
BC
be
LBC D3:25 m.
Letting
P
D300 rpm Dconstant
, plot the angular acceleration of the slider as a function of
for
0ı360ı. In addition, plot the speed of point Cfor the same range of .
of McGraw-Hill, and must be surrendered upon request of McGraw-Hill. Any duplication or distribution, either in print or electronic form, without the
permission of McGraw-Hill, is prohibited.
of McGraw-Hill, and must be surrendered upon request of McGraw-Hill. Any duplication or distribution, either in print or electronic form, without the
permission of McGraw-Hill, is prohibited.
Dynamics 2e 1315
Problem 6.120
A wheel
W
of radius
RWD2in:
rolls without slip over the stationary
cylinder
S
of radius
RSD5in:
, and the wheel is connected to point
O
via
the arm OC .
Determine the acceleration of the point on the wheel
W
that is in contact
with Sfor !OC D7:5 rad=sDconstant.
of McGraw-Hill, and must be surrendered upon request of McGraw-Hill. Any duplication or distribution, either in print or electronic form, without the
permission of McGraw-Hill, is prohibited.
Problem 6.121
A wheel
W
of radius
RWD2in:
rolls without slip over the stationary
cylinder
S
of radius
RSD5in:
, and the wheel is connected to point
O
via
the arm OC .
Determine the acceleration of the point on the wheel
W
that is in contact
with Sfor !OC D7:5 rad=s and ˛OC D2rad=s2.
of McGraw-Hill, and must be surrendered upon request of McGraw-Hill. Any duplication or distribution, either in print or electronic form, without the
permission of McGraw-Hill, is prohibited.
Dynamics 2e 1317
Problem 6.122
A wheel
W
of radius
RWD2in:
rolls without slip over the stationary
cylinder
S
of radius
RSD5in:
, and the wheel is connected to point
O
via
the arm OC .
If, at the instant shown,
D63ı
,
!WD9rad=s
, and
˛WD
1:3 rad=s2
, determine the angular acceleration of the arm
OC
and the
acceleration of point
P
, where
P
lies on the edge of
W
and is aligned
vertically with point C.
12 ft
12 ft
acceleration of Cis
of McGraw-Hill, and must be surrendered upon request of McGraw-Hill. Any duplication or distribution, either in print or electronic form, without the
permission of McGraw-Hill, is prohibited.
of McGraw-Hill, and must be surrendered upon request of McGraw-Hill. Any duplication or distribution, either in print or electronic form, without the
permission of McGraw-Hill, is prohibited.
Dynamics 2e 1319
Problem 6.123
At the instant shown, bars
AB
and
BC
are perpendicular to each other
while the slider
C
has a velocity
vCD24 m=s
and an acceleration
aCD2:5 m=s2
in the directions shown. If
LD1:75
m and
D45ı
,
determine the angular acceleration of bars AB and BC .
Solution
Since
AB
is vertical,
BC
is horizontal, and
D45ı
, the IC of bar
BC
must be at Aat this instant. Therefore
of McGraw-Hill, and must be surrendered upon request of McGraw-Hill. Any duplication or distribution, either in print or electronic form, without the
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