In her physics lab, Jessica rolls a 11-g marble down a ramp and off the table with a horizontal velocity of 1.38 m/s. The marble falls in a cup placed 0.45 m from the table's edge. Find the table's height.

Answer 1

Time of flight = t
1.38 t = 0.45
t = 0.326 s

Now calculate how far the marble falls in 0.326 s. That is the table's height, H.

H = (g/2)t^2