A pound of body fat has an energy content of about 4 100 kcal.If a 1 400-kg automobile had an equivalent amount of translational kinetic energy,how fast would it be moving? (0.447 m/s = 1 mph,1 kcal = 4 186 J)
A) 3.1 mph
B) 14 mph
C) 75 mph
D) 350 mph
Correct Answer:
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