How long does it take to reach 48.8cm?
2.27t - 4.9t^2 = 0.488
Now you have the time, and
v = 2.72 - 9.81t
Playing jackstone as a kid, you discovered that there is a certain time before the rubber ball falls and you took advantage of this when picking up the stars on the floor. If you threw the ball 2.72 m/s up into the air, how fast will it be moving at a height of 48.80 cm? How much time has elapsed upon reaching this height?
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