Yes, a body at rest can have energy.
Explanation:
Energy is the capacity to do work, and it is not necessary for a body to be in motion to possess energy.
Types of energy a body at rest can have:
- Potential energy:
A body may have energy due to its position or configuration.
Example: A book kept on a table has gravitational potential energy.
- Internal energy:
Energy stored within the body due to molecular motion and interactions.
- Elastic potential energy:
If a body is stretched or compressed (like a spring), it stores energy even when at rest.
Key point:
- A body at rest has zero kinetic energy, but it can still possess other forms of energy.