4. A body at rest can have ?Speed Velocity Momentum Energy

A body at rest can have energy.

Here's why:

1. Speed: Speed is the rate at which an object moves. If a body is at rest, it means it's not moving. Therefore, it has zero speed.

2. Velocity: Velocity is speed in a given direction. Since a body at rest is not moving, it has zero velocity.

3. Momentum: Momentum is the product of the mass and velocity of an object. Since a body at rest has zero velocity, it also has zero momentum.

4. Energy: Energy can exist in various forms. Even when a body is at rest, it can still have potential energy. For example, a book on a shelf has potential energy because if it falls, the potential energy will be converted to kinetic energy. Therefore, a body at rest can have energy.