Question

What is the sum of all forces acting on an object and direction

Answer 1

The sum of all forces acting on an object is called the net force. It takes into account the magnitude and direction of each individual force. Internal forces cancel out, resulting in a net force of zero, while external forces are added together vectorially to find the net force.

Step-by-step explanation:

The sum of all forces acting on an object and their direction:

In physics, the sum of all forces acting on an object is called the net force. The net force takes into account the magnitude and direction of each individual force. To find the net force, you need to consider both internal and external forces.

Internal Forces:

Internal forces are the forces between different parts of the object. According to Newton's third law, these forces always come in pairs with equal magnitudes but opposite directions. When you add all the internal forces together, they cancel out and the sum of all internal forces is zero.

External Forces:
External forces are the forces applied to the object by external sources. The sum of all external forces is equal to the net force acting on the object. To calculate the net force, you need to add up all the external forces vectorially, taking into account their magnitudes and directions.

Answer 2

The sum of all forces on an object is the net force or resultant force. If all the forces cancel out , resultant force is zero , otherwise unbalanced force will cause acceleration of object .

Force is the vector, has both direction and magnitude.