You use a pulley to lift your bike to the ceiling for winter storage.
When you bought the pulley, the salesman claimed that the pulley has a
mechanical advantage of 10. While lifting the bike, you notice that the
pulley is squeaking because it has rusted over the summer. You determine
that the pulley now has an actual mechanical advantage of 3. What is
Thank you for the opportunity to help you with your question! the solution is as such:
3/ 10 =0.3
so the efficiency is 0.3 0r 30%
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