A roller coaster car starts from rest at the top of a 60 m high track. Determine the speed of the car at the top of a loop that is 15 m high. Assume there are no frictional forces.

What is the final velocity of the initial velocity of 25 and -50?

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form

An electron is traveling with initial kinetic energy k in a uniform electric field. the electron comes to rest momentarily after traveling a distance d. (a) what is the magnitude of the electric field