After exercising for a few minutes,a person has a respiratory cycle for which the velocity of airflow is approximated by $v = 1.75 \sin \left( \frac { \pi t } { 3 } \right)$ ,
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​ $v = 1.75 \sin \left( \frac { \pi t } { 3 } \right)$ , ​
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​ $v = 1.75 \sin \left( \frac { \pi t } { 3 } \right)$ , ​
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 v=1.75sin⁡(πt3)v = 1.75 \sin \left( \frac { \pi t } { 3 } \right)v=1.75sin(3πt​)

After Exercising for a Few Minutes,a Person Has a Respiratory $v = 1.75 \sin \left( \frac { \pi t } { 3 } \right)$