An object is released from rest (its initial velocity is zero)
from the Empire State Building at a height of 1250 ft above
street level (Figure Ex-26). The height of the object can be
modeled by the position function s = f(t) = 1250 − 16t 2.
(a) Verify that the object is still falling at t = 5 s.
(b) Find the average velocity of the object over the time
interval from t = 5 to t = 6 s.
(c) Find the object’s instantaneous velocity at time t = 5 s.
Mathbot Says...
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