Part 1 of 2
Bill kicks a rock off the top of his apartment
building. It strikes a window acro...
![subject](/tpl/images/cats/fizika.png)
Part 1 of 2
Bill kicks a rock off the top of his apartment
building. It strikes a window across the street
18 m away.
The acceleration of gravity is 9.8 m/s?.
If the window is 19 m below the position
where Bill contacted the rock, how long was
it in the air?
Answer in units of s.
part 2 of 2
How fast was it moving when it left Bill's
foot?
Answer in units of m/s.
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Answers: 2
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