In order to slide a heavy desk across the floor at constant speed in a straight line, you have to exert a horizontal force of 400 newtons. compare the 400-newton horizontal pushing force f to the frictional force f between the desk and the ground.
1. f < f; the frictional force is greater than the pushing force since it is such a heavy desk.
2. f = f from newton’s first law.
3. f > f; the frictional force is always less than any other force acting on the object.
4. it depends on the direction the desk moves. 5. f = f from newton’s third law.

F = f from Newton’s first law.

Explanation:

since the desk is moved in a straight line at a constant speed, newton first law tell us that the two forces must be equal.

Newton's First Law states that an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force. since the table has been set in motion by the 400 N force, it will remain in motion unless it is been acted upon by an external force, and this means that the 400 N must be equal to the frictional force for it to have been in motion in the first instance.

the answer is 46 mls because when you add the speed per second it increses the speed

what are the statements? x