A Hockey Puck Slides Off the Edge of a Horizontal

Multiple Choice

A hockey puck slides off the edge of a horizontal platform with an initial velocity of 20 m/s horizontally and experiences no significant air resistance. The height of the platform above the
Ground is 2.0 m. What is the magnitude of the vertical component of the velocity of the puck just
Before it hits the ground?

A) 15 m/s
B) 21 m/s
C) 6.3 m/s
D) 20 m/s
E) 13 m/s