Question

what do you mean by linear acceleration and angular acceleration derive the relation between them​

Answer 1

Answer:

These equations mean that linear acceleration and angular acceleration are directly proportional. The greater the angular acceleration is, the larger the linear (tangential) acceleration is, and vice versa. ... For example, the smaller a wheel, the smaller its linear acceleration for a given angular acceleration α.

hope it will help you

Answer 2

Linear acceleration refers to change in velocity per unit time while angular acceleration is the acceleration during a circular motion refers to the change in angular velocity per unit time. It's unit is $radian/s^2$

Derivation is simple but I am lazy, check your ncert book.