A pulley system shows is use to raise a load of 600N through 8m. If the effiency I 90%. Calculate

a, machincal advantage
b. Workdone by the effort
c. Effort applied

1 answer

we can not see how many blocks you have in your block and tackle system so all I cab]n do is part B

0.90 * work = 600 * 8
so
work = 6000 * 8/9 Joules = 5333 Joules