Linear and Angular Velocity Answers

4 verified answers2 views
5
Free Preview

A golfer’s arm rotates 1/2 of a revolution in 1/10 of a second. If the angular displacement is measured in radians, which statements are true? Check all that apply.The angular velocity is 10π rad/sec. The angular velocity is 10π rad/min. The angular velocity is 60π rad/min.The angular velocity is 600π rad/sec. The angular velocity is 600π rad/min.

A
The angular velocity is 10π rad/sec.
B
The angular velocity is 10π rad/min.
C
The angular velocity is 60π rad/min.
D
The angular velocity is 600π rad/sec.
E
The angular velocity is 600π rad/min.
7

Marisol has a bicycle with wheels of 29 inches in diameter. Eliza has a bicycle with wheels of 26 inches in diameter. Both women pedal their bicycles so that the wheels turn at a constant rate of 150 revolutions per minute.Which statement compares the speeds of the two women? (Note: 1 mile = 5,280 feet)

A
Eliza travels approximately 1.34 miles per hour faster than Marisol.
B
Eliza travels approximately 2.68 miles per hour faster than Marisol.
C
Marisol travels approximately 1.34 miles per hour faster than Eliza.
D
Marisol travels approximately 2.68 miles per hour faster than Eliza.

Did you find these answers helpful?