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How Much Work Must Be Done by Frictional Forces in Slowing

Question 109

Multiple Choice

How much work must be done by frictional forces in slowing a 1000-kg car from $26.1 \mathrm {~m} / \mathrm { s }$ to rest?

A) 3.41 × 10⁵ J
B) 2.73 × 10⁵ J
C) 4.09 × 10⁵ J
D) 4.77 × 10⁵ J

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