Hagan places a distance sensor 50cm below the weight. She then lifts the weight 10cm and turns on the distance sensor as she drops the weight.

She received the following information from the sensor:

Time (s) Height (cm) Time (s) Height (cm) 0 60.0 2.2 53.2 0.2 57.7 2.4 46.0 0.4 53.2 2.6 41.7 0.6 46.9 2.8 39.8 0.8 41.9 3.0 43.2 1.0 40.0 3.2 51.5 1.2 42.8 3.4 58.1 1.4 50.9 3.6 59.8 1.6 56.9 3.8 58.2 1.8 59.6 4.0 51.4 2.0 59.4