# A model train with a mass of #2 kg# is moving along a track at #36 (cm)/s#. If the curvature of the track changes from a radius of #9 cm# to #3 cm#, by how much must the centripetal force applied by the tracks change?

The change in centripetal force is

Centripetal force is what

The centripetal force fluctuation is

By signing up, you agree to our Terms of Service and Privacy Policy

The centripetal force applied by the tracks must increase by approximately 4 times.

By signing up, you agree to our Terms of Service and Privacy Policy

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.

- Two objects have masses of #42 MG# and #25 MG#. How much does the gravitational potential energy between the objects change if the distance between them changes from #21 m# to #15 m#?
- A model train, with a mass of #8 kg#, is moving on a circular track with a radius of #1 m#. If the train's rate of revolution changes from #5/8 Hz# to #1/4 Hz#, by how much will the centripetal force applied by the tracks change by?
- Two objects have masses of #3 MG# and #15 MG#. How much does the gravitational potential energy between the objects change if the distance between them changes from #160 m# to #280 m#?
- A model train, with a mass of #4 kg#, is moving on a circular track with a radius of #8 m#. If the train's kinetic energy changes from #32 j# to #0 j#, by how much will the centripetal force applied by the tracks change by?
- Which object would fall to the ground faster: a heavy mass or a feather? (Please correct my logic).

- 98% accuracy study help
- Covers math, physics, chemistry, biology, and more
- Step-by-step, in-depth guides
- Readily available 24/7