This link should help you out!!
http://mszopiak.weebly.com/uploads/5/5/8/1/55815541/p_vtgraphskey_mszopiak.pdf
By definition, centripetal acceleration is given by:

Where,
v: tangential disk speed
r: disk radius
Substituting values in the given equation we have:

Rounding the result we have:

Answer:
The centripetal acceleration of the disc edge in m/s^2 is:

the answer is.................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................<u>FALSE.</u> You are welcome everybody :) GOod luck to all of you people. Peace love and coconut oil ॐ
B. 2 Km North, displacement is basically how far form the original place