Question

A body at rest cannot have:

Answer 1

Hint: All motions are relative to some point in space. Saying that a body is at rest, or that it is not in motion, simply means that it is being described as a frame of reference that is moving along with the body.

Complete answer:
A body at rest cannot have kinetic energy or momentum because kinetic energy is associated with motion, and momentum is defined as the product of the body's mass and velocity.In physics, an object's kinetic energy is the energy it possesses as a result of its motion. It is defined as the amount of work required to accelerate a body of a given mass from rest to a given velocity.

The body retains its kinetic energy after gaining it during acceleration unless its speed changes. A truck traveling down the road, for example, has more kinetic energy than a car traveling at the same speed because the truck's mass is much greater than the car's.Momentum is the product of a particle's mass and velocity. Momentum is a vector quantity, which means it has a magnitude as well as a direction.

According to Isaac Newton's second law of motion, the time rate of change of momentum equals the force acting on the particle. A bowling ball (large mass) moving slowly (low velocity), for example, can have the same momentum as a baseball (small mass) thrown quickly (high velocity).

The following are the two conditions for a body to be at rest and in equilibrium:
-The sum of all forces acting on the body must equal zero.
-The torque produced must be equal to zero.

Note: The term "body in motion" refers to an object that changes position over time. For example, rotating fan blades, a moving vehicle, and so on. When a moving body comes to rest, its acceleration becomes negative because its velocity becomes zero. As a result, the acceleration is also zero.