Question

Make a model that shows the forces acting on two blocks on a flat, frictionless surface:
a. A 1 N block at rest
b. A 1 N block with 2 N of force applied in one horizontal direction
Include arrows to represent the forces and labels to indicate the magnitude of each force. Use your model to compare and explain the motion of each block.

Answer 1

The 1 N block at rest will remain at rest unless external force greater than 1 N acts on it.

The 1 N block with 2 N force applied in one horizontal direction, will move in the direction of the 2 N force.

The given parameters:

• 1 N block at rest
• 1 N block with 2 N applied force

The model for the 1 N block as rest is given as;

                                                ↑ 1 N (normal reaction)

                                               ⊕

                                                ↓ 1 N (weight of the block)

The model for the 1 N block with 2 N force applied in one horizontal direction is given as;

                                     

            (normal reaction)  1 N      ↑      

                                                     ⊕ →     2 N (horizontal force)

     (weight of the block)  1 N       ↓      

                                                 

The 1 N block at rest will remain at rest unless external force greater than 1 N acts on it.

The 1 N block with 2 N force applied in one horizontal direction, will move in the direction of the 2 N force.

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