5. You and your friend are standing in front of a conveyor belt of an airport. The belt moves at a velocity V = 0.8 m/s and it is long l = 200 m. At a given moment, you step on the conveyor belt while your friend
starts walking at a constant pace v = 1.2 m/s.
(a) What is her velocity with respect to you?
(b) How much before you will your friend reach the end of the conveyor belt?

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