A cable car at a ski resort carries skiers a distance of 7.5 km. The...
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Physics
A cable car at a ski resort carries skiers a distance of 7.5 km. The cable which moves the car is driven by a pulley with diameter 4.0 m. Assuming no slippage, how fast mustthe pulley rotate for the cable car to make the trip in 10 minutes?60 rpm9.4 rpm80 rpm30 rpm
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