The disk rotates in the horizontal plane about a fixed shaft at the origin with constant a...

The disk rotates in the horizontal plane about a fixed shaft at the origin with constant angular velocity ω = 10 rad/s. The 2-kg slider A moves in a smooth slot in the disk. The spring is unstretched when x = 0 and its constant is k = 400 N/m. Determine the acceleration of A relative to the body-fixed coordinate system when x = 0.4 m.

Strategy: Use Eq. (17.25) to express Newton’s second law for the slider in terms of the body-fixed coordinate system.