(a)
\Find the angular speeds of the tires.
\Vehicle’s tires range between
and
revolutions per minute.
The diameter of each tire is
inches.

Case 1 :
\If number of rotation in revolutions of the tires per minute is
.
Angle of each rotation of tire is
.
Angle of
rotations is
.
Angular speed of the tire is
.
Substitute
and
in
.

.
Case 2 :
\If number of rotation in revolutions of the tires per minute is
.
Angle of each rotation of tire is
.
Angle of
rotations is
.
Angular speed of the tire is
.
Substitute
and
in
.

.
Angular speeds of the tires is
to
.
Find the linear speeds of the tires.
\If number of rotation in revolutions of the tires per minute is
.
Tire diameter
.

Radius
.
The linear speed is
.
Substitute
,
and
in
.



Substitute equation (2) and (3) in equation (1).
\
\
Case 2 :
\If number of rotation in revolutions of the tires per minute is
.
Substitute
,
and
in
.


Linear speeds of the tires is
to
.
(a) Angular speeds of the tires is
to
.
(b) Linear speeds of the tires is
to
.