Question

a hot wheel is rolled off a table 85cm tall and lands 75cm from the edge of the table how fast was the hot wheel racing?

Answer 1

you can use projectile equations

Answer 2

the projectile equation in terms of x,y, theta is

y = yo + x*tan(theta) -g/2*x^2/(vo cos theta)^2

the initial angle is zero , so this simplifies to
simplifies to

y = yo - gx^2/(2(vo)^2)