If a ball is thrown straight up into the air with an initial velocity of 70 ft/s, it height in
feet after t second is given by y = 70t – 16t. find the average velocity for the time
period begining when t = 2 and lasting
(i) 0.1 seconds
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(ii) 0.01 seconds
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(iii) 0.001 seconds
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grade: 0/14
finally based on the above results, guess what the instantaneous velocity of the ball is
when t = 2.
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