Physics, 30.09.2019 22:40 embersongracie

Aramp 20 m long and 4 m high is used to lift a heavy box. a pulley system with 4 rope sections supporting the load is used to lift an identical box to a height of 4 m. if friction is ignored, the ramp requires a to lift the load.

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Aramp 20 m long and 4 m high is used to lift a heavy box. a pulley system with 4 rope sections suppo...

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