Respuesta :

1. Their kinetic energy increases as they go down the hill.

2. Their kinetic energy masively decreases as they go up the hill.

3. potential energy decreases as they go down the hill.

4. their potential energyincreases as they go up the hill.

1.  His kinetic energy increases as he goes down the ramp because hes going faster and faster

2. His kinetic energy decreases because hes losing speed but as his kinetic energy decreases his potential increases  

3.his potential energy decreases

4.his potential energy increases