A model train, with a mass of $8 kg$ , is moving on a circular track with a radius of $6 m$ . If the train's rate of revolution changes from $1 Hz$ to $2 Hz$ , by how much will the centripetal force applied by the tracks change by?

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Answer 1 · 2017-02-22T15:57:39

The change in centripetal force is $=1895N$

The centripetal force is

$F=mr omega^2$

The variation in centripetal force is

$DeltaF=mr(Delta omega)^2$

$=8*6*((2-1)2pi)^2$

$=48*4*pi^2$

$=1895N$

A model train, with a mass of 8 kg8 kg, is moving on a circular track with a radius of 6 m6 m. If the train's rate of revolution changes from 1 Hz1 Hz to 2 Hz2 Hz, by how much will the centripetal force applied by the tracks change by?