

1. 
Determine the angular displacement in radians of 11.3 revolutions. Round to the nearest tenth. 


A. 
35.5 radians 
B. 
3.6 radians 


C. 
1.8 radians 
D. 
71.0 radians 


Hint 


2. 
Determine the angular velocity if 4.5 revolutions are completed in 7 seconds. Round to the nearest tenth. 


A. 
11.1 radians/s 
B. 
2.0 radians/s 


C. 
4.0 radians/s 
D. 
5.01 radians/s 


Hint 


3. 
Determine the linear velocity of a point rotating at an angular velocity of radians per second at a distance of 11 centimeters from the center of the rotating object. Round to the nearest tenth. 


A. 
52.5 cm/s 
B. 
165 cm/s 


C. 
518.4 cm/s 
D. 
33.4 cm/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 19.5 mph 


C. 
about 13.7 mph 
D. 
about 18.4 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. 
22.3 in./s 


C. 
16.8 in./s 
D. 
4.0 in./s 


Hint 

