SOLUTION: What would a graph look like if you accidentally drop your keys from the roof of a tall building?

Question 818771: What would a graph look like if you accidentally drop your keys from the roof of a tall building?
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
use the general equation of motion with constant acceleration:
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r(t) = r0 + (v0)t + (at^2)/2
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where:
r(t) = position at time t (meters)
r0 = position at time 0 (meters)
v0 = velocity at time 0 (m/s)
a = constant acceleration (for gravity in the metric system use a = -9.81 m/s^2)
t = time (seconds)
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r(t) = (-4.905)t^2
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graph:
x-axis is time in seconds
y-axis is distance in meters
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