a toy car rolls horizontally on to a ramp that has a total height of 0.8m. what minimum velocity will allow the car to reach the top of the ramp/

1 answer

1/2mv^2=mgh

The masses are the same, so they cancel out leaving the above relationship:

1/2v^2=gh

Solve for v:

v=sqrt*(2gh)

where

g=9.8m/s^2
and
h=0.8m