Question

Applied Force is our label for a contact force that a person exerts. When an applied force acts at an angle, it is actually a combination of two forces: normal and friction. The component of the applied force that is perpendicular to the surface is a normal force, and the component parallel to the surface is a friction force. I have two questions;

1. When the applied force is at an angle then forces of friction and normal are between the surface of the object and the hand, not between the object and the ground so can we say that the parallel component of applied force is responsible for the acceleration of the object? (Is it okay to say that it is the friction force between our hand and the object that accelerates the object)?

2. What will happen if an applied force acts on a thread also can we say that the applied force is the combination of normal and friction force between my hands and thread if so then tension force will be also called a combination of normal force and friction force or if I am wrong then please correct me.

Answer 1

When an applied force acts at an angle, the parallel component of the applied force is responsible for the acceleration of the object, as it overcomes the friction force. In the case of an applied force acting on a thread, tension force is responsible for any acceleration, and it is not a combination of normal and friction forces.

Step-by-step explanation:

When an applied force acts at an angle, it can be resolved into two components: a normal force and a friction force.

he normal force is the component of the applied force that is perpendicular to the surface, and the friction force is the component parallel to the surface.

The parallel component of the applied force is responsible for the acceleration of the object, as it overcomes the friction force.

So, it is correct to say that it is the friction force between your hand and the object that accelerates the object.

If an applied force acts on a thread, the force of tension is responsible for any acceleration of the thread.

The normal and friction forces do not play a significant role in this scenario.

The tension force in the thread is the result of the force applied by your hands, and it is not a combination of normal and friction forces. So, tension force is not referred to as a combination of normal and friction forces.