A skateboarder enters a ramp at 5 m/s, skates down it and exits at 14 m/s. What was the Height of the ramp?

Question

A. 8.7 m B. 85.5 m C. -1.2 m D. 3m E. 1.2 m

Pls show work !

Answer 1

h = (V^2-Vo^2)/2g
h = (196-25)/19.6 = 8.7 m.