Two balls collide, they are elastic if: a. Total Momentum before and after is the same.
b. Total Kinetic Energy before and after is the same.
c. Total Momentum and Kinetic before and after are the same.
d. Total Potential energy is the same before and after a collision,

Choose the correct general statement concerning the total potential and kinetic energy at any point along the arc of swing. the total energy at any point along the arc of swing of the pendulum is always less than 12 joules. the total energy at any point along the arc of swing of the pendulum is always more than 12 joules. the total energy at any point along the arc of swing of the pendulum is always equal to 12 joules. not enough information to determine