Question

1. In the above activity, which are the different forces acting on the box? 
2. Is a displacement possible without a force? 
3. If a force is applied with both the hands on a wall, will there be a displacement?
4. If no displacement occurs on applying a force, what does it indicate?

Answer 1

• The box is acted upon by the pulling force applied by the girl, the frictional force of the ground and the gravitational force of the Earth.
• No. A force is required to bring about a change in the position of an object.
• No. The wall does not move, so there is no displacement.
• It indicates that, although a force is applied, no work is done because the object has not moved through any distance.