Question

You are lifting a heavy box. We'll consider this process for different choices of system and surroundings. (1) Choose the box as the system of interest. What objects in the surroundings exert significant forces on this system? Check all that apply.

Answer 1

Explanation:

When one lift a heavy box then force acting o box, considering box as the system of interest.

Thus force acting on the box is

• Gravitational Force by earth
• Normal Reaction:applied by a person

The magnitude of this forces are equal such that the object remains at rest.