2-kg mass at 60-m height
5-kg mass at 5-m height
20-kg mass at 50-m height
40-kg mass at 2-m height
31,900 J
153,000 J
85,000 J
338,000 J
KE of father = 2KE of son
KE of father = 1/2KE of son
KEof father = 4KE of son
KE of father = 1/4KE of son
2.5 E 4 J
5.0 E 4 J
4.9 E 5 J
2.5 E 6 J
1.020 m
10.20 m
102.0 m
1,020 m
0.21 m
0.31 m
0.46 m
0.59 m
0.25 m
0.50 m
1.3 m
2.5 m
One-fourth as great
The same
One-half as great
Four times as great
Decreases
Increases
Remains the same
1
2
3
4
1
2
3
4
6.00 J
72.0 J
24.0 J
144 J
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