Assume the roller coaster starts from rest. What is the velocity of the roller coaster at the top of the loop? 22 m/s 13 m/s 11 m/s 16 m/s at rest it is 25.0 m off the ground and goes all the way down to 3.00 m then up to 4.00 m and then a loop at the height of 12.0 m