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Answer:
0.128 N
Step-by-step explanation:
½ mv²initial = ½ mv²final + Ff d
½ (1)(10²) = ½ (1)(9.2²) + (Ff)(60)
50 = 43.32 + (Ff)(60)
7.68 = (Ff)(60)
0.128 = Ff
Note:
Ff - force of friction
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