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Original Question
A ball is thrown horizontally from the roof of a building 58.5 m tall and lands 38.7 m from the base. What was the ball's initi...Asked by durr
A ball is thrown horizontally from the roof of a building 47.9 m tall and lands 35.4 m from the base. What was the ball's initial speed in m/s?
Hint: Find the horizontal velocity by calculating the time of flight and using the horizontal distance.
Hint: Find the horizontal velocity by calculating the time of flight and using the horizontal distance.
Answers
Answered by
bobpursley
find the time it takes for the ball to fall 47.9m
hf=hi-4.9t^2
t= sqrt (47.9/4.9)
velocity=35.4/time
hf=hi-4.9t^2
t= sqrt (47.9/4.9)
velocity=35.4/time
Answered by
durr
what does the hf and hi stand for?
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