# Physics Central Force: find effective potential energy, radius of particle's orbit

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A particle of mass 50g moves under an attractive central force of magnitude 4r^3 dynes. The angular momentum is equal to l,000 g*cm/s.

a) Find the effective potential energy.

b) Indicate on a sketch of the effective potential the total energy for circular motion.

c) The radius of the particle's orbit varies between ro and 2ro. Find ro.

https://brainmass.com/physics/energy/physics-central-force-find-effective-potential-energy-radius-of-particle-s-orbit-6028

#### Solution Summary

The solution clearly defines the terms in the problem, prepares the sketch and works out the solution.

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