2) In figure, two blocks are connected by a massless string over a pulley of radius, 2R, and rotational inertia, I. When this system is released at rest, the blocks (masses: m₁ = m and m₂ = -3m) are moving with a constant acceleration. (The friction constant between m, and the surface is equal to μ.) a) Draw the free body diagram and write the Newton's equations for both masses and pulley. b) Find the angular velocity of the pulley in 5 second. m₁-m m₂=3m

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Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!