1. What is meant by \(1\ joule\) of work?
\(1\ J\) is the amount of an object when a force of displaces it by along the line of action of the force.
2. How do you define the kinetic energy of a body?
Kinetic energy is the energy contained by an object due to its . The kinetic energy of an object .
The kinetic energy of a body moving with a certain velocity is equal to the .