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3.Make a model that shows the forces acting on two blocks on a flat, frictionless surface:a.A 1 N block at restb.A 1 N block with 2 N of force applied in one horizontal directionInclude 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.

Sagot :

a) When a block is resting on a flat surface, As long as it is at rest, it will exert a downward force on the surface which is a product of its mass and gravity. It will not move according to newtons first law of motion unless a force is applied. According to newton's third law of motion, there would be an opposite reaction that would balance this downward force. This is known as the normal force. The model of this scenario is shown below.

b) For the block with a 2 N force acting on it, the diagram is shown below.

For the first model, the object will remain at rest

For the second model, the applied force will cause the block to move towards the right since there is no frictional force to oppose the motion. The net force in the horizontal direction is 2N

View image AnhX539904
View image AnhX539904
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