Help with Physics

Question

A ball is dropped from a high building. Using the approximate value of g = 10 m/s², find the change in velocity between the first and sixth seconds of its flight.

Answer 1

h(t) = -10t^2/2

v(t) = h'(t) = -10t

v(1) = -10 meters per second velocity after 1 second

v(6) = -60 m/s after 6 seconds

change in speed = 50 m/s

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