Maths Mechanics Help

Yida

Hi, can someone explain to me why the initial velocity for this question is 0 once it leaves the surface

Screenshot 2024-06-14 175432.png72.4KB

Screenshot 2024-06-14 175606.png191.3KB

Reply 1

mqb2766

The initial vertical velocity is zero as its instantaneously travelling horizontally.

Reply 2

ToxicMenace

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.