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anonymous
 5 years ago
A cliff diver falls forward from a cliff 130 feet above the ground. His position function is given by s(t) 16t^2 +130, where t is measured in seconds and s is measured in feet.
After how many seconds will he be traveling at
40 ft/s?
anonymous
 5 years ago
A cliff diver falls forward from a cliff 130 feet above the ground. His position function is given by s(t) 16t^2 +130, where t is measured in seconds and s is measured in feet. After how many seconds will he be traveling at 40 ft/s?

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Take the derivative of s(t) and set it equal to 40 ft/s then solve for time.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Thanks, I got 1.25 sec. How about how far he would have fallen by that time?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0you substitute t=1.25 into your derivative

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0substitute it into v'(t)?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0or s(t) since it said "how far?"

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0How do I find the average velocity for [0, 2]?
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