If the body does not move or change its position with respect to the surroundings or frame of reference, it is said to be at rest. The person is said to be at rest on a bus or in the cinema.
The body can also change its position and be said to be moving or changing its position w.r.t. frame of reference only when it has moved due to some external force like gravity, electricity, etc., which causes the motion and change of position by having a somatic effect on the body as well as bodily effects like a change in temperature, pressure, etc. where the body changes into the different state but stays at the same location which is called movement but not considered to be rest.
An object sitting at rest on a table and does not move. For example, a person sitting on a chair or in a train seat or any other type of seating where he is not moving but remains stationary and does not change his position.
Real-Life examples of rest:
- A person sitting at a desk is considered to be at rest.
- A person is considered to be at rest when he does not take any steps or make any gestures or other movements that would cause him to change his position w.r.t the body’s surroundings in the space-time continuum like gravitational force, electricity, etc.
- A person sitting on a moving train is considered to be at rest.
- A person resting in bed is considered to be at rest.
- A person lying down with no movements, for example, a sleeping person, can be said to be at rest but not sleeping because bodily functions like breathing, etc., still take place, and hence he is said to be ready or asleep instead of being at rest or asleep.
- A person lying down with no breathing or other functions and without movement after death, i.e., a body is at rest in the sense that it does not move but not at rest in the sense that nobody function takes place in it, which can also be termed as a dead body.
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