Please solve with steps

An object of mass m = 500g is undergoing circular motion, rotating in an anti-clockwise direction. Currently, at t = 0s, the angular acceleration of the object, do = Orads.s-2, and the angular speed of the object, wo = 4.2rads. s-1. The radius of the circular path, R = 1.5m. a) Calculate the linear velocity of the object, ve. b) Calculate the centripetal force on the object. The object begins to accelerate at a constant rate in the -0 direction (or, in other words, decelerate at a constant rate in the 0 direction) such that a = -1.4rads. s-2. c) Use the angular constant acceleration equations show that after 6 seconds have passed, the new angular velocity, w = -4.2rads.s-1. d) Explain, in your own words, why the centripetal force is exactly the same both at t = 0s and t = 6s