For the following exercises, consider a rocket shot into the air that then returns to Earth. The height of the rocket in meters is given by h ( t ) = 600 + 78.4 t − 4.9 t 2 , where t is measured in seconds. 21. Use the preceding exercise to guess the instantaneous velocity of the rocket at t = 9 sec.
For the following exercises, consider a rocket shot into the air that then returns to Earth. The height of the rocket in meters is given by h ( t ) = 600 + 78.4 t − 4.9 t 2 , where t is measured in seconds. 21. Use the preceding exercise to guess the instantaneous velocity of the rocket at t = 9 sec.
For the following exercises, consider a rocket shot into the air that then returns to Earth. The height of the rocket in meters is given by
h
(
t
)
=
600
+
78.4
t
−
4.9
t
2
, where t is measured in seconds.
21. Use the preceding exercise to guess the instantaneous velocity of the rocket at t = 9 sec.
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