Apen rolls off a 0.55–meter high table with an initial horizontal velocity of 1.2 meters/second. at what horizontal distance from the base of the table will the pen land?

To calculate the horizontal distance traveled by the ball, we first calculate the total time it takes to reach the ground as follows:

t = √[2y/g] = √[2(0.55) / 9.81]
t = 0.33 s

The horizontal distance would be

X = Vx*t = 1.2*√[2*.55/9.8] = 0.4 m

Hope this helps. 

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