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. a)greater input distance and a greater force b)smaller input distance and a greater force c)smaller input distance and a smaller force d)greater input distance and a smaller force