Net Force acting on block on incline

In summary, net force is the overall force acting on an object, calculated by combining all individual forces and taking into account direction and magnitude. The significance of net force on a block on an incline is that it determines the block's motion, with the direction of the net force determining whether the block moves up, down, or stays in place. The angle of the incline affects the net force by changing the gravitational force and can result in a zero net force if the forces acting on the block are balanced.
  • #1
TheFlemster
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Homework Statement


A 6.50 kg block is placed on an inclined surface. The coefficients of static and kinetic friction between the block and the surface are 0.685 and 0.485, respectively. The incline makes an angle of 18.8° relative to horizontal. The block is at rest and remains at rest. What is the magnitude of the net force that acts on the block?

Homework Equations


net Force, F = ma

The Attempt at a Solution


F = ma
F = mass * acceleration
F = mass * 0
net Force, F=0
 
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  • #2
Exactly right. Good.
 

What is the definition of net force?

The net force is the overall force acting on an object, taking into account all of the individual forces acting on that object.

How is net force calculated?

Net force is calculated by adding together all of the individual forces acting on an object, taking into account their direction and magnitude. This can be done using vector addition or by using Newton's second law, which states that net force is equal to mass times acceleration.

What is the significance of net force on a block on an incline?

Net force on a block on an incline is important because it affects the acceleration and motion of the block. The direction of the net force determines whether the block will move up, down, or stay in place on the incline.

How does the angle of the incline affect the net force on a block?

The angle of the incline affects the net force on a block by changing the amount of gravitational force acting on the block. As the angle of the incline increases, the component of the force due to gravity pulling the block down the incline also increases, resulting in a larger net force.

Can net force ever be zero on a block on an incline?

Yes, net force can be zero on a block on an incline if the forces acting on the block are balanced, meaning that they cancel each other out and there is no resulting acceleration. This can occur if the force due to gravity pulling the block down the incline is equal and opposite to the force of friction acting on the block up the incline.

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