Answer:
- period: 5 seconds
- frequency: 1/5 rps, or 12 rpm
Step-by-step explanation:
You want the period and frequency of rotation of a wheel that makes 10 rotations in 50 seconds.
Period
The period is the time divided by the number of rotations in that time:
(50 s)/(10 rot) =5 s/rot
The period of one rotation is 5 seconds.
Frequency
The frequency is the inverse of the period:
1/(5 s/rev) = 1/5 rev/s = 1/5 rps
Often, frequency of rotation is expressed in revolutions per minute. In one minute the wheel will make ...
(1/5 rev/s)ยท(60 s/min) = 12 rev/min = 12 rpm