A model train with a mass of #9 kg# is moving along a track at #18 (cm)/s#. If the curvature of the track changes from a radius of #24 cm# to #42 cm#, by how much must the centripetal force applied by the tracks change?
The centripetal force applied by the tracks change is
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Centripetal Force = (Mass * (Final Velocity)^2) / Radius
Centripetal Force (initial) = (9 kg * (0.18 m/s)^2) / 0.24 m
Centripetal Force (final) = (9 kg * (0.18 m/s)^2) / 0.42 m
Change in Centripetal Force = Centripetal Force (final) - Centripetal Force (initial)
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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.
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.
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