Answer:
23 m/s downward
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Taking the downward direction as positive
We are given:
Initial velocity of the marble (u) = 0 m/s
Time interval (t) = 2.3 seconds
Final velocity (v) = x m/s
Solving for the Final velocity:
Acceleration of the Marble:
We know that gravity will make the marble accelerate at a constant acceleration of 10 m/s
Final velocity:
v = u + at [First equation of motion]
x = 0 + (10)(2.3) [replacing the given values]
x = 23 m/s
Hence, after 2.3 seconds, the marble will move at a velocity of 23 m/s in the downward direction
