9. A mass m₁ = 5.00 kg is connected by a light string that passes over a pulley of mass m3 = 6.0 kg to a mass m₂ = 7.50 kg sliding on a frictionless inclined surface that makes an angle of 21° with the horizontal (see figure). The coefficient of kinetic friction between the mass m₁ and the horizontal surface is 0.24. There is no slippage between the string and the pulley. What is the magnitude of the tension that is acting on mass m₂? (The moment of inertia of the pulley is SC236 Mr2.) 61 N m₂ 368 sc2368 sc2368 sc2361 S9EZas svezos 80 cos 89EZOS m3 m₁ 2368 sc2368 sc2368 sc2368 68 sez368 sc2368 sc2368 sc2368

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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!