You rev your car's engine to 2700 rpm (rev/min). (a) What are the period and frequency of the engine? (b) If you change the period of the engine to 0.044 s, how many rpms is it doing?
Step 1 of 2
For the given angular frequency, we are required to calculate the period and frequency.
There are 2700 revolutions in 1 min
There are 2700 revolutions in 60 s.
Time for 1 revolution s
Therefore, the period is 0.022 s.
Frequency = 1/period
= 1/0.022 Hz
= 45.5 Hz
Therefore, the frequency is 45.5 Hz.