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A 1-kg circular disc of radius 50 cm starts from rest and rotates with constant angular acceleration with an angular speed of 12.0 rad/s in 3.
A 1-kg circular disc of radius 50 cm starts from rest and rotates with constant angular acceleration with an angular speed of 12.0 rad/s in 3.5 s. Find the magnitude of angular momentum of the disc and the angle in radians through which it rotates in this time.