Answer all of them. ILL GIVE BRAINIEST. Determine whether the objects in the following problems have kinetic or potential energy (if potential specify either elastic or gravitational) and then calculate it.

Formula
KE = 12 mv2 KE = (0.5)(mass)(velocity2)
PEgrav = mgh PEgrav = (mass)(9.8 m/s2)(height)
PEElastic = 12 kx2 PEElastic = (0.5)(spring constant)(how far object is stretched/compressed)
Questions:
1. A baby carriage is sitting on top of a hill that is 12 meter high. The carriage with baby has a mass of 2.2 kg.
Potential
2. A car is traveling with a velocity of 40 m/s and has a mass of 1120 kg.
Kenetic
3. Mr. Hearth is launched from a cannon at a speed of 30 m/s and his mass is 74 kg.
Kenetic
4. A cat is stuck in a tree. The cat weighs 14.7 Newtons. The tree is 10 meters high.
Potential