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Homework answers / question archive / USE g= 10 N/kg or 10 ms-2 1
USE g= 10 N/kg or 10 ms-2
1. A 500kg load is lifted a distance of 10m in 25 seconds.
a) Find work done by the crane.
c) Find the efficiency of the crane if it is supplied 80,000 J of energy for this job.
d) Find energy wasted by the crane.
