The Crab Pulsar Has a Period That Is Currently of Length

Multiple Choice

The Crab Pulsar has a period that is currently of length 33.085 ms.It is estimated to have an equatorial radius of 15 km,about average for a neutron star.The pulsar is slowing in its rotation so that it is expected to come to rest 9.5 $\times$ 10¹⁰ s in the future.What is the value of the tangential acceleration of an object on the neutron star's equator?

A) 3.0 $\times$ 10^-5 m/s²
B) 2.0 $\times$ 10^-9 m/s²
C) 3.2 $\times$ 10^-10 m/s²
D) 7.6 $\times$ 10^-7 m/s²
E) 4.8 $\times$ 10^-6 m/s²