10-35 AM 1e85% Reading Question 2.05 Abaseball is seen to pass upward by a windo

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10-35 AM 1e85% Reading Question 2.05 Abaseball is seen to pass upward by a window vertical speed of 16 m/s The ball was thrown by a person 17 m below on the street Part A What was its initial speed Express your answer to two significant figures and include the appropriate units Value Units Submit Part B What altitude does it reach Express your answer to two significant Its Submit Part C What time elapsed since it was thrown Reading Question 2.05 A basebaill is seen to pass upward by a window with a vertical speed of 16 m/s.The ball was thrown by a person 17 m below on the stree Part A What was its inicial speed Express your answer to two significant figures and include the appropriate units Value Units Submit An Part B figures and include the appropriate units .1 Value Units Submit

Explanation / Answer

(A) Applying vf^2 - vi^2 = 2 a d

16^2 - v0^2 = 2 (-9.8)(17)

v0 = 24.3 m/s

(B) at max height, v = 0

0^2 - 24.3^2 = 2(-9.8)(H )

H = 30.06 m

(C) vf = vi + a t

16 = 24.3 - 9.8 t

t = 0.85 sec

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