Question

An object weighing 2.0 Newton’s is pushed across a horizontal frictionless surface by a horizontal force of 4.0 Newton’s the magnitudeof the net force acting on the object is

Answer 1

Answer

4.0 N

Explanation

If there is no friction on the surface that the object is pushed across, there will be no force that opposes the 4.0 N force that pushes the object across the floor. Since the only force acting on the object is the 4.0 N force it has to be the unbalanced net force. The net force on the object is 4.0 N.

Answer 2

The net force acting on the object as it is pushed across the frictionless surface is $\boxed{4\text{ N}}$.

Explanation:

The net force acting on an object is defined as the resultant force acting on the object. The resultant force of the several force acting on a body is the vector sum of all the forces acting on the object.

The weight of the object is acting in the vertically downward direction on the horizontal surface. Due to the weight of the object in the downward direction, the horizontal surface exerts a reaction force on the object in the opposite direction.

The reaction of the surface acts on the object in the upward direction and equal to the weight of the object. The horizontal acting on the object is $4\text{ N}$ and this force is responsible for the motion of the object.

There surface on which the object is kept is frictionless. So, the object will not face any frictional force on it.

Therefore, the net force acting on the object in the vertical direction will be zero because the forces are cancelled by each other and the net force in the horizontal direction is the $4\text{ N}$ as there is no other force acting on the block in horizontal direction.

Thus, The net force acting on the object as it is pushed across the frictionless surface is $\boxed{4\text{ N}}$.

Learn More:

1. The amount of friction that should be present to avoid sliding brainly.com/question/1621778

2. Speed of the block after collision brainly.com/question/11746789

3. Initial velocity of the marble as it leaves the launching device brainly.com/question/154928

Answer Details:

Grade: Middle School

Subject: Physics

Chapter: Force

Keywords:

object, newton, force, horizontal, surface, frictionless, magnitude, net force, resultant, weight, reaction, vertical direction, zero, motion.