1. A bullet with mass 12.0 g travels 415 m/s. Find its kinetic energy. (Convert 12.0 g to kg.)
2. A bicycle and rider together have a mass of 7.40 slugs. If the kinetic energy is 742 ft lb, find the velocity.
3. A crate of mass 475 kg is raised to a height 17.0 m above the floor. What potential energy has it acquired with respect to the floor?