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If the mass of the person on the left incline at 30 degrees is 72kg and the mass of the person on the right side

If the mass of the person on the left incline at 30 degrees is 72kg and the mass of the person on the right side of the roof at 60 degree incline providing the counter balance is 55kg, which side of the roof will they slide down if the friction suddenly becomes negligible because of sudden freezing rain? Also solve for the acceleration

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