Question

Explain how force, energy and work are related?

Answer 1

1. Force is a type of influence that can alter the state of rest or motion of a body.
2. When a force applied to a body produces displacement, work is said to be done by the force. If there is no displacement, no work is done.
3. Work done, $W=F·s$(where $F$ is the force applied and $s$ is the displacement.
4. Energy is the capacity of a body to do work. Dimensionally, both quantities are the same. The change in energy of a body may be directly responsible for the work done by it.
5. Work done = change in energy, i.e $W=\Delta E=F·s$.