A camera records a lizard running along a straight marked track. The average speed of the lizard between two frames is 0.60 m/s.
| Frame number | Position in m\mathrm{m}m |
|---|---|
| 24 | 0.40 |
| 84 | 2.20 |
What is the recording rate of the camera?
36 frames per second36\ \text{frames per second}36 frames per second
180 frames per second180\ \text{frames per second}180 frames per second
20 frames per second20\ \text{frames per second}20 frames per second
14 frames per second14\ \text{frames per second}14 frames per second