Netforce Graph Help: Understanding Zero Netforce and Constant Velocity

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In summary, constant speed does not always equal constant velocity because velocity is a vector that includes direction. In the case of a track, the direction of the velocity changes, indicating acceleration. This acceleration is known as centripetal acceleration and can be calculated using the velocity and radius of the track at a specific point. The net force in this case is not zero.
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revults
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Homework Statement




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The Attempt at a Solution



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Netforce is zero right?
Constant speed is constant velocity.
I'm not sure how to draw this.
 
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  • #2
Constant speed is constant velocity.

Not always - remember that velocity is a vector.
 
  • #3
Net force in this case is not zero.

Constant speed doesn't imply a constant velocity because velocity is a vector and in the track, its direction changes. This change in direction implies that the body is being accelerated. In this case it is the centripetal acceleration. It can be calculated knowing the velocity and the radius of the track at the required point.
 

1. What is a netforce graph?

A netforce graph is a visual representation of the forces acting on an object. It shows the magnitude and direction of the forces, and can help determine the resulting motion of the object.

2. How do you determine if the netforce is zero on a graph?

If the netforce graph shows all forces acting on an object to be equal and opposite, then the netforce is zero. This means that the object is in a state of equilibrium and will not experience any change in its motion.

3. What does a constant velocity look like on a netforce graph?

A constant velocity on a netforce graph is shown by a straight, horizontal line. This means that the netforce is zero and the object is moving at a constant speed in a straight line.

4. Can a netforce graph be used to predict an object's future motion?

Yes, a netforce graph can be used to predict an object's future motion. By analyzing the forces acting on the object and their netforce, we can determine if the object will continue to move at a constant velocity, accelerate, or decelerate.

5. How does understanding zero netforce and constant velocity help in real-world applications?

Understanding zero netforce and constant velocity can help in real-world applications such as designing safer vehicles or predicting the motion of celestial bodies. It also helps in understanding the principles of motion and how forces affect the movement of objects.

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