80% = 80 / 100 = 0.8
80% • effort = 300 N / 6
0.8 • effort = 50 N
effort = 50 N / 0.8 = 62.5 N
A machine has velocity ration of 6 and it efficiency is 80%. What effort would be needed to lift a load of 300N with the aid of this machine.
1 answer