Table 5.

Corresponding ball energy values with different weights falling from 100 cm.

Ball weight/g	Energy/J (S1)	Energy/J (S2)	Energy/J (S3)	Energy/J (S4)
100	0.74	1.91	1.95	0.83
200	1.35	2.43	2.67	1.41
300	1.62	3.31	3.35	1.73