SOLUTION: A boy sliding down a hill accelerates at 1.40 m/s2. What distance would he slide if he starts by running with an initial velocity of 2 m/s, then he jumps on his sled and slides for

Algebra ->  Length-and-distance -> SOLUTION: A boy sliding down a hill accelerates at 1.40 m/s2. What distance would he slide if he starts by running with an initial velocity of 2 m/s, then he jumps on his sled and slides for      Log On


   



Question 1185654: A boy sliding down a hill accelerates at 1.40 m/s2. What distance would he slide if he starts by running with an initial velocity of 2 m/s, then he jumps on his sled and slides for 5 seconds.
Answer by Alan3354(69443) About Me  (Show Source):
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A boy sliding down a hill accelerates at 1.40 m/s2. What distance would he slide if he starts by running with an initial velocity of 2 m/s, then he jumps on his sled and slides for 5 seconds.

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His terminal speed is 2 + 5*1.4 = 9 m/sec
His start speed is 2 m/sec
The average speed is (2+9)/2 = 5.5 m/sec
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5*5.5 = 27.5 meters