1. A Roller Coaster showing in the picture bellow of mass of M = 146 Kg is moving through the 3 hills until the end of the rid. if the first hill has Hight of H1=22 m, the second hill H2 = 17 m and the Third hill H3= 10 m. calculate the following: First Scale 1.0 cm 3.0 m Second bill Third End of ride

a) Potential energy at the maximum height (first hill) in (J) :

b) The Kinetic Energy in the second hill ::

c) the velocity of the car in the third hill ::


d) The velocity of the car at the end of the rid ::

(e) Potential energy at the end of the hall ​