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anonymous
 4 years ago
If a ball is thrown straight up into the air with an initial velocity of 64 ft/sec, it's height in feet after t seconds is given by y=65t16t^2. Find the average velocity for the time period beginning at t = 1 and lasting for .5, .1, and .01.
I've done this about 10 times and consistently get 40 for the first which lasts .5 seconds which I'm told is incorrect. Help!
anonymous
 4 years ago
If a ball is thrown straight up into the air with an initial velocity of 64 ft/sec, it's height in feet after t seconds is given by y=65t16t^2. Find the average velocity for the time period beginning at t = 1 and lasting for .5, .1, and .01. I've done this about 10 times and consistently get 40 for the first which lasts .5 seconds which I'm told is incorrect. Help!

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anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0this is quite annoying, but you have to replace t by 1.5,1.1,1.01 and see what you get which one would you like to do?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0lets do 1.1 \[\frac{65\times 1.116(1.1)^249}{1.11}\] \[\frac{52.1449}{.1}\] \[\frac{3.14}{.1}\] \[31.4\]

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0others are similar, use a calculator

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0or take this template, and replace 1.1 by your other two values (everywhere you see it) http://www.wolframalpha.com/input/?i=%2865%281.1%29%2816%29%281.1%29^249%29%2F%281.11%29
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