All object Sides down a ramp. a) If the ramp is frictionless, write a work/energy equation and find the speed of the 1000. kg roller coaster at the bottom of the ramp. 2.00 m/ s 17.5 m long track 10.0 mi . . . . . .. b) If the speed at the bottom of the ramp is 12.0 m/s, write a work/energy equation and find the energy loss to friction