Gold Block on Accelerating Turntable Problem
A 2.30 kg gold block rests on the surface of a horizontal turntable, 65.0 cm from the center. The coefficient of static friction between the gold block and the turntable's surface is .440. The turntable starts from rest and is given a uniform angular acceleration of 1.80 rad/s2.
   (A) What are the tangential and radial accelerations of the gold block 1.10 seconds after the turntable starts accelerating ?
   (B) What is the magnitude and direction of the force of friction acting on the gold block 1.10 seconds after the turntable starts accelerating ?
   (C) How long after the turntable starts accelerating will it take for the gold block to start slipping ?