Unreasonable results A runner approaches the finish line and is 75 m away; her average speed at this position is 8 m/s. She decelerates at this point at 0.5 m/s². How long does it take her to cross the finish line horn 75 m away? Is this reasonable?
Unreasonable results A runner approaches the finish line and is 75 m away; her average speed at this position is 8 m/s. She decelerates at this point at 0.5 m/s². How long does it take her to cross the finish line horn 75 m away? Is this reasonable?
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Transcribed Image Text:Unreasonable results A runner approaches the finish line and is 75 m away; her average speed at this
position is 8 m/s. She decelerates at this point at 0.5 m/s². How long does it take her to cross the finish
line horn 75 m away? Is this reasonable?
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