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小 發表於 2013-11-30 03:42 AM (第 3793 天)
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integration
1)You are testing your brandnew Ferrari Testarossa. To see how well the brakes work you accelerate to 100 miles per hour, slam on the brakes, and determine that you brought the car to a stop over a distance of 453 feet. Assuming a constant deceleration you figure that that deceleration is __________feet per second squared.
I trust that you don't have the courage to try this, but that night you wonder how long it would take you to stop (with the same constant deceleration) if your were moving at 200 miles per hour. Remembering your Calculus you figure out that your stopping distance would be______feet.
What _____ is?
2)by using substitution,integrate x=0 to x=1 1/(x^(1/2)+8x^(1/3))dx
i hv no ideai .....plz help!!!
[ 本帖最後由 kendyho1995 於 2013-11-30 06:32 PM 編輯 ]
