3.4.1 - Number of readings question 1
A student slid a small metal cube down a frictionless ramp. The cube collided with a fixed metal block at the bottom of the ramp.
The student released the cube from position X as shown in the diagram. After the collision, the cube rebounded to position Y.
The student measured heights h and r. He then repeated the experiment using several different starting positions.
The student recorded his results in the table below.
h / m | r / m
0.20 | 0.11
0.25 | 0.137
0.30 | 0.16
0.35 | 0.19
0.40 | 0.217
0.45 | 0.24
Criticise these results.