After exercising for a few minutes, a person has a respiratory cycle for which the velocity of airflow is approximated by ,

Where t is the time (in seconds) .
(Inhalation occurs when v > 0 and exhalation occurs when v < 0.)

Find the number of cycles per minute.

Question

After exercising for a few minutes, a person has a respiratory cycle for which the velocity of airflow is approximated by ​  ,
​
Where t is the time (in seconds).
(Inhalation occurs when v > 0 and exhalation occurs when v < 0.)
​
Find the number of cycles per minute.
​
A)12 cycles/min 
B)10 cycles/min 
C)15 cycles/min 
D)13 cycles/min 
E)11 cycles/min

Quizplus · Accepted Answer

The Answer of After exercising for a few minutes, a person has a respiratory cycle for which the velocity of airflow is approximated by ​  ,
​
Where t is the time (in seconds).
(Inhalation occurs when v > 0 and exhalation occurs when v < 0.)
​
Find the number of cycles per minute.
​
A)12 cycles/min 
B)10 cycles/min 
C)15 cycles/min 
D)13 cycles/min 
E)11 cycles/min

After Exercising for a Few Minutes, a Person Has a Respiratory