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solve this : A ball is thrown into the air by a baby alien on a...

solve this : A ball is thrown into the air by a baby alien on a planet in the system of Alpha Centauri with a velocity of 49 ft/s. Its height in feet after t seconds is given by y=49t−30t^2.

A. Find the average velocity for the time period beginning when t=2 and lasting

.01 s:
.005 s:
.002 s:
.001 s:
NOTE: For the above answers, you may have to enter 6 or 7 significant digits if you are using a calculator.

Estimate the instanteneous velocity when t=2.

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