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April 20, 2014

April 20, 2014

Posted by **Kristi** on Monday, September 3, 2012 at 7:17pm.

s = −16t2 + v0t + s0A C-141 Starlifter flying at 20,000 feet over level terrain drops a 700-pound supply package.

(a) How long will it take until the supply package strikes the ground? (Round your answer to one decimal place.)

1 seconds

(b) The plane is flying at 500 miles per hour. How far will the supply package travel horizontally during its descent? (Round your answer to one decimal place.)

2 miles

- Physics -
**Henry**, Wednesday, September 5, 2012 at 5:39pma. d = ho + Vo*t -0.5g*t^2.

20000 + 0 - 16t^2 = 0

16t^2 = 20000

t^2 = 1250

Tf = 35.4 s. = Fall time.

b. Dx = 500mi/h * (35.4/3600)h = 4.9 Mi.

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