Does every moving body possess kinetic energy? Does every stationary body possess potential energy?
(1) yes
(2) not if there are no forces acting on the body, regardless of location.
Yes, every moving body possesses kinetic energy, which is the energy of motion. The amount of kinetic energy depends on the mass and velocity of the object according to the formula: kinetic energy = 1/2 * mass * velocity^2.
On the other hand, every stationary body does not necessarily possess potential energy. Potential energy is the energy that an object possesses due to its position or condition. For example, a book sitting on a shelf has gravitational potential energy because it can fall and release that energy. Similarly, a compressed spring or a stretched rubber band has potential energy that can be released when it reverts back to its original state. However, if there is no force acting on a stationary object or if its position does not provide any potential for energy release, it may not possess potential energy.
Yes, every moving body possesses kinetic energy, and every stationary body possesses potential energy.
To understand why, we need to define kinetic energy and potential energy.
Kinetic energy is the energy of an object due to its motion. It depends on the mass of the object and its velocity. The formula for kinetic energy is KE = 0.5 * m * v^2, where KE is the kinetic energy, m is the mass of the object, and v is its velocity.
So, if an object is moving, it has kinetic energy. The faster it moves or the heavier it is, the greater its kinetic energy will be.
On the other hand, potential energy is the energy stored in an object due to its position or configuration in a force field. It can be gravitational potential energy, elastic potential energy, or chemical potential energy, among others.
For example, a stationary object above the ground has gravitational potential energy because of its position relative to the Earth's gravity. The formula for gravitational potential energy is PE = m * g * h, where PE is the potential energy, m is the mass of the object, g is the acceleration due to gravity, and h is the height of the object above a reference level.
In this case, even though the object is not in motion, it still possesses potential energy due to its position relative to the Earth.
In summary, while every moving body possesses kinetic energy, every stationary body possesses potential energy. The specific type of potential energy depends on the force field or configuration in which the object exists.