**Forces acting on a plastic bucket containing water held above ground level in your hand**

When a plastic bucket containing water is held above ground level in your hand, there are several forces acting on it. These forces include:

1. **Gravitational force**: This force is exerted by the Earth on the bucket and acts vertically downward. It is responsible for the weight of the bucket and the water it contains.

2. **Normal force**: This force is exerted by your hand on the bucket and acts perpendicular to the surface of your hand. It counteracts the gravitational force and prevents the bucket from falling through your hand.

3. **Tension force**: This force is exerted by your hand on the bucket handle or rim. It acts upward and opposes the downward gravitational force. The tension force is responsible for holding the bucket and preventing it from falling.

4. **Buoyant force**: This force is exerted by the water on the bucket and acts vertically upward. It counteracts the weight of the water and reduces the overall weight of the bucket.

**Why the forces acting on the bucket do not bring a change in its state of motion?**

Despite the presence of multiple forces acting on the bucket, it does not experience a change in its state of motion. This is due to the following reasons:

1. **Balanced forces**: The forces acting on the bucket, namely the gravitational force, normal force, tension force, and buoyant force, are balanced. The gravitational force is counteracted by the normal force and tension force, while the weight of the water is counteracted by the buoyant force. As a result, the net force acting on the bucket is zero.

2. **Newton's first law of motion**: According to Newton's first law of motion, an object at rest or in uniform motion will remain in that state unless acted upon by an external force. Since the net force acting on the bucket is zero, the bucket remains in its state of motion, which could be at rest or moving with a constant velocity.

3. **Force equilibrium**: The forces acting on the bucket form a force equilibrium, where the vector sum of all the forces is zero. This ensures that the bucket is in a state of mechanical equilibrium, where there is no acceleration or change in motion.

4. **Hand grip and stability**: Your hand provides a stable grip on the bucket, ensuring that it does not slip or fall. The tension force exerted by your hand maintains the bucket in a stable position, counteracting the gravitational force.

In conclusion, the forces acting on a plastic bucket containing water held above ground level in your hand are balanced, resulting in a state of force equilibrium. This prevents any change in the bucket's state of motion, as per Newton's first law of motion.

There are two forces acting on bucket muscular and gravitational force beacause due to muscular force we are able to hold bucket and due to gravitational force the bukect id able to be in your hand