A ramp 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
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greater input distance and a smaller force
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