Answer: 3
Step-by-step explanation:
Answer:
192000 J
k = 1/2 mv²
48000 = 1/2 x m x (20)²
48000 = 200m
m = 240 kg
new k
k = 1/2 x 240 x 40²
k = 192000 J
Letter C
7x-14a-63
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