Lieutenant Morioka to lift a heavy box 300, 2 wheels. If A wheel is diameter 120 cm. with A 40 cm radius shaft wheel 30 cm radius B. a. B axle 40 cm. If A shaft with วัตุผูก and have a rope between the two wheels. Don, Lieutenant Morioka exert the shaft B as Lieutenant Morioka to exert at least a few Newton
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