# A model train, with a mass of #3 kg#, is moving on a circular track with a radius of #2 m#. If the train's rate of revolution changes from #5/4 Hz# to #3/8 Hz#, by how much will the centripetal force applied by the tracks change by?

The change in centrpetal force

Centripetal force is what

The frequencies that are

The centripetal force fluctuation is

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The centripetal force applied by the tracks will change by ( \frac{39}{16} , \text{N} ).

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

- A model train, with a mass of #8 kg#, is moving on a circular track with a radius of #2 m#. If the train's kinetic energy changes from #8 j# to #48 j#, by how much will the centripetal force applied by the tracks change by?
- A model train with a mass of #3 kg# is moving along a track at #8 (cm)/s#. If the curvature of the track changes from a radius of #15 cm# to #12 cm#, by how much must the centripetal force applied by the tracks change?
- A model train, with a mass of #3 kg#, is moving on a circular track with a radius of #1 m#. If the train's kinetic energy changes from #27 j# to #36 j#, by how much will the centripetal force applied by the tracks change by?
- A model train with a mass of #3 kg# is moving along a track at #12 (cm)/s#. If the curvature of the track changes from a radius of #4 cm# to #8 cm#, by how much must the centripetal force applied by the tracks change?
- Are there any equation for 2d motion and if present what are they?

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