Lesson: Kinetic Energy

How many times larger is the kinetic energy of a bullet of mass 0.005 kg that has a velocity of 500 m/s than the kinetic energy of a drone with a mass of 5 kg and a velocity of 5 m/s?

A motorboat at rest on a lake has a mass of 665 kg. The motorboat then accelerates until it has a kinetic energy of 340,480 J. When the motorboat has accelerated, at what rate does it move toward a stationary boat that is directly in front of it?

A hummingbird has a mass of 40 g. The hummingbird flies in a straight line between two flowers 18 m apart in a time of 12 s. What is the average kinetic energy of the hummingbird while flying between the flowers?