A model train with a mass of $6 kg$ is moving along a track at $8 (cm)/s$ . If the curvature of the track changes from a radius of $3 cm$ to $16 cm$ , by how much must the centripetal force applied by the tracks change?

Question

1400 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2017-10-09T07:55:23

$\DeltaF=1.04N$

$F_\circ=(mv^2)/r$

$\DeltaF = F_1-F_2=(mv^2)/r_1-(mv^2)/r_2=(6*0.08^2)/0.03-(6*0.08^2)/0.16=1.04N$

A model train with a mass of 6 kg6 kg is moving along a track at 8 (cm)/s8 (cm)/s. If the curvature of the track changes from a radius of 3 cm3 cm to 16 cm16 cm, by how much must the centripetal force applied by the tracks change?