# A pulsar gravitation question need help!

1. Apr 14, 2013

### dendiego

A pulsar – a highly magnetized, rotating neutron star – has a radius of 9.98 Km, a mass of 1.98 × 1030 kg, and revolves around itself at a rate of 30.02 times per second. Calculate the nearest distance that a person 1.99 m tall could approach the pulsar without being pulled and torn apart. Assume that the mass of the person is uniform through out his/her body and the feet point toward the pulsar, and dismemberment starts when the force that each half of his/her body exerts on the other exceeds ten times his/her body weight on our planet earth. Also calculate the period of revolution that the body will cover in a circular orbit about the pulsar at this minimum distance.

what am I suppose to begin I have tried using the basic gravitation equation but my teacher said we will need a Taylor series to solve but i dont know how that relates ?
my best guess is that it is used to find the actual distance correct?
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2. Apr 14, 2013

### cepheid

Staff Emeritus
Welcome to PF!