in the diagram below the red block has a mass of 3 kg, the blue block has a mass of 4 kg, & the pulley has a mass of 6 kg. Treat the pulley as a solid cylinder, assume the string remains taut the entire time, and assume no thermal energy is generated. Determine how fast the blue block will be going when it hits the ground if it was released from rest 42 cm above the ground. 1.59152 m/s X

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