a 10-kg block on a perfectly smooth horizontal table is connected by a horizontal string to a 63-kg block that is hanging over the edge of the table. What is the magnitude of the acceleration of the 10-kg block when the other block is gently released?

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  1. force down = m g = 63*9.81 N

    mass accelerated = 63+10 = 73 kg

    a = F/m = 9.81 (63/73) m/s^2

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  2. 72

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  3. 8.5 m/sec^2

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