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# I am looking for the answers of problem 26 and 29

26. A ball is thrown straight down from the top of a 280-ft building with an initial velocity
of -10 ft per second. The position function is s(t) = -1612 + vat + so . What is the
velocity of the ball after 2 seconds?
27. Find dy/dx by implicit differentiation.
x 2 + 1 2 =
28. Find dy/dx by implicit differentiation.
x + 4x +15xy -1 =9
29. An airplane flies at an altitude of 6 miles towards a point directly over an observer.
Consider O and x as shown in the following figure. The speed of the plane is 400 miles
per hour. Find
de
dt
6 mi
- X

Question 26: v 1 = 5 4 f t / s Question 27: d x d y = y x ... View the full answer

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