Question

Romeo is chucking pebbles gently up juliet's window and he wants the pebbles to hit the window with only a horizontal velocity. He is standing at the edge of a rose garden 8m below her window and 9m from the base of the wall. how fast are the pebbles moving when they hit her window?

Answer 1

a velocity at an angle can be treated as a vector and broken up into components which can be treated separately