Work done on stone refers to the amount of energy that is transferred to the stone to cause a change in its position or state. It is a measure of the force applied to the stone and the distance it is moved.
In this scenario, the stone is not moving or changing in any way. This means that no energy is being transferred to the stone and therefore the work done on the stone is equal to 0. This is because work is defined as force multiplied by distance, and if either of these values is 0, then the work done will also be 0.
Kinetic energy change refers to the change in the amount of energy that an object has due to its motion. It is a measure of the object's mass and velocity and is defined as 1/2 times the mass of the object multiplied by the square of its velocity.
The work done on a stone will result in a change in its kinetic energy. If work is done on the stone, meaning energy is transferred to it, then its kinetic energy will increase. If no work is done on the stone, its kinetic energy will remain the same.
Yes, the work done on a stone can be negative. This would occur if the force applied to the stone is in the opposite direction of its motion. In this case, the stone would lose energy and its kinetic energy change would be negative.