Two boxes with masses ?1= 2.50 kg and ?2= 11.00 kg are attached by an ideal rope and pulley system, as shown. The ramp has an angle ?=41.3∘ When the system is released from rest, ?2 slides down the ramp and ?1 is lifted up. The coefficient of kinetic friction between the ramp and ?2 is 0.21. Boxes connected by two pulley system with ramp. What is the magnitude of the acceleration of ?1 ?

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Two boxes with masses ?1= 2.50 kg and ?2= 11.00 kg are attached by an ideal rope and pulley system, as shown. The ramp has an angle ?=41.3∘ When the system is released from rest, ?2 slides down the ramp and ?1 is lifted up. The coefficient of kinetic friction between the ramp and ?2 is 0.21. Boxes connected by two pulley system with ramp. What is the magnitude of the acceleration of ?1 ?
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