Logically, wouldn't it be 0 m/s, since it was launched horizontally?
The ball has its initial vertical velocity equal to zero. The correct option is D.
Velocity is the time rate of change of displacement. The displacement and velocity both are vector quantities. They represent magnitude and direction as well.
A ball is launched horizontally at 150 m/s from a cliff.
As the ball is launched horizontally, there will be no vertical velocity.
So, the vertical velocity is zero.
Thus, the correct option is D.
Learn more about velocity.
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