position final = position initial + (speed initial)(time) + .5(acceleration)(time^2)
0=300 + 0(x) +.5(-9.807)(x^2)
0=300 + 0 + -4.9035(x^2)
-300=-4.9035(x^2)
-300 / -4.9035 = x^2
61.18 = x^2
x = 7.82 seconds
That is to assume that the initial speed is 0.
This is incorrect.
The initial distance is in feet, 300 feet, but the rate of acceleration is in meters per second squared, (-9.807 meters per second squared).
To get the correct answer, the units of measurement must match, either feet or meters.
The correct answer is 4.32 seconds.
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My foot is 28cm long, so 300 feet are 300 x 28cm = 8.4m long
One mile and 300 feet is equal to 5,580 feet.
It is 77.6 feet.
3.10 acres
300 feet = 100 yards = 3,600 inches = 9,144cm = 91.44m