Problem

At time t = 0 a helicopter takes off gently and then 60 seconds later it lands gently. L...

At time t = 0 a helicopter takes off gently and then 60 seconds later it lands gently. Let f(t) be its altitude above the ground at time t seconds.

a. Will be positive or negative? Same question for .

b. Will be positive or negative? Same question for

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Solutions For Problems in Chapter 2.5

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