SOLUTION: An object moving with velocity 144,000m/hr accelerates during 3seconds and reaches velocity 67m/s. The acceleration is?

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Question 681433: An object moving with velocity 144,000m/hr accelerates during 3seconds and reaches velocity 67m/s. The acceleration is?
Answer by Alan3354(69443) About Me  (Show Source):
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An object moving with velocity 144,000m/hr accelerates during 3seconds and reaches velocity 67m/s. The acceleration is?
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144,000 m/hr = 40 m/sec
a = (67-40)/3 = 9 m/sec/sec