1.
Determine the angular velocity if 4.5 revolutions are completed in 7 seconds. Round to the nearest tenth.
A.
5.01 radians/s
B.
2.0 radians/s
C.
4.0 radians/s
D.
11.1 radians/s
Hint
2.
The tires on a race car have a diameter of 28 inches. If the tires are turning at the rate of 1500 revolutions per minute, determine the race car's speed in miles per hour to the nearest tenth.
A.
249.9 mph
B.
124.9 mph
C.
62.5 mph
D.
187.4 mph
Hint
3.
A clothes dryer is rotating at 450 revolutions per minute. Determine its angular velocity in radians per second. Round to the nearest tenth.
A.
23.6 radians/s
B.
2,827.4 radians/s
C.
282.7 radians/s
D.
47.1 radians/s
Hint
4.
A bicycle wheel is 30 inches in diameter. If the wheel turns at a constant rate of 3 revolutions per second, what is the linear speed in miles per hour of a point on the tire?
A.
about 16.1 mph
B.
about 18.4 mph
C.
about 19.5 mph
D.
about 13.7 mph
Hint
5.
If a pulley is turned 240° per second and its radius is 4 inches, find its linear velocity in inches per second. Round to the nearest tenth.
A.
33.5 in./s
B.
16.8 in./s
C.
22.3 in./s
D.
4.0 in./s
Hint