Ahorizontal force of 20 newtons eastward causes a 10-kilogram box to have a displacement of 5 meters eastward. the total work done on the box by the 20-newton force is (1)40 j (2)100 j (3)200 j (4)1000 j

Explanation:

The Work done by a Force refers to the release of potential energy from a body that is moved by the application of that force to overcome a resistance along a path.  

It should be noted that it is a scalar magnitude, and its unit in the International System of Units is the Joule (like energy). Therefore, 1 Joule is the work done by a force of 1 Newton when moving an object, in the direction of the force, along 1 meter:  

Now, when the applied force is constant and the direction of the force and the direction of the movement are parallel, the equation to calculate it is:  

(1)  

Where is the distance traveled by the object.

In this case:

 and

Hence:  

>>>>This is the work

the focus of lesson 1 is newton's first law of motion - sometimes referred to as the law of inertia. newton's first law of motion is often stated as. an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

explanation:

conduction, convection, radiation