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Maths Mechanics Help

Hi, can someone explain to me why the initial velocity for this question is 0 once it leaves the surface
Reply 1
The initial vertical velocity is zero as its instantaneously travelling horizontally.
In the question, there is a horizontal and vertical component. As we are focussing on vertical components here, the ball doesn’t move up, it’s moving horizontally, so the vertical component to velocity is 0. But then once it leaves the surface, the vertical component changes.
Reply 3
thanks for the reply, it all makes sense now 👌

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