Understanding Centripetal Force in a Rubber Ball and String Lab

In summary, during a lab experiment involving a glass tube with a rubber ball and a string with metal washers, the question was raised about the accuracy of the centripetal force when the ball hangs too low. The reason for this is because there is less force when the ball is hanging too low. To maintain a given radius and velocity, drawing free body diagrams for the two cases is recommended in order to compare the relative magnitudes of the forces and determine which ones to measure and which ones to minimize or maximize.
  • #1
pisces93
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Homework Statement



I did a lab where there was a glass tube with a rubber ball attached and a string hanging from the glass tube with metal washers attached at the bottom.

My question is if the ball were to hang too low why would the centripetal force be less accurate is it because there is less force when hanging to low, and if i were to maintain a given radius and velocity what would happen to the material.
 
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  • #2
Did you draw free body diagrams for the two cases? If not, you might wish to do so and compare the relative magnitudes of the forces involved (particularly for the ones you're interested in measuring and those you want to minimize or maximize).
 

Related to Understanding Centripetal Force in a Rubber Ball and String Lab

What is centripetal force?

Centripetal force is the force that acts on an object moving in a circular path, directing it towards the center of the circle. It is required to keep the object moving along the circular path.

How is centripetal force related to circular motion?

Centripetal force is directly proportional to the mass of the object and the square of its velocity, and inversely proportional to the radius of the circular path. This means that as any of these factors changes, the centripetal force required to keep the object in circular motion will also change.

What is a centripetal force lab?

A centripetal force lab is an experiment conducted to measure and understand the relationship between centripetal force, mass, velocity, and radius. It involves using a rotating apparatus, such as a pendulum or a spinning object, to observe the effects of changing these variables on the required centripetal force.

What are some real-life applications of centripetal force?

Centripetal force is a crucial concept in many fields of science and engineering. It is used in the design of roller coasters, satellite orbits, and centrifuges. It also plays a role in the functioning of everyday objects such as washing machines, car tires, and amusement park rides.

What are some safety precautions to keep in mind when conducting a centripetal force lab?

When conducting a centripetal force lab, it is important to ensure that the rotating apparatus is securely attached and that all materials are properly balanced. Safety goggles should be worn, and the experiment should be conducted in a well-ventilated area. Care should also be taken when handling any moving parts to avoid injury.

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